Battery cell glue pressing device and battery cell glue pressing method

Abstract

The invention discloses a battery cell glue pressing device and a battery cell glue pressing method, and relates to the technical field of battery processing, the battery cell glue pressing device comprises a battery cell transfer mechanism, a tabletting mechanism, a first glue pressing driving mechanism and a glue pressing mechanism; the battery cell transferring mechanism is used for bearing a battery cell to move along a first direction; the tabletting mechanism is used for tabletting a connecting sheet on the battery cell collector plate; the first adhesive pressing driving mechanism is used for driving the pressed battery cell to move along a second direction; the adhesive pressing mechanism is arranged on one side of the tabletting mechanism along the first direction; wherein when the glue pressing mechanism performs glue pressing on the end surface of the battery cell from the second direction, a glue pressing surface propped against the end surface of the battery cell is formed on the glue pressing mechanism; according to the technical scheme provided by the invention, the gummed paper on the peripheral side of the battery cell can be tightly pressed on the end surface of the battery cell, a good gummed paper pressing effect is realized, and an easily damaged area of the connecting sheet is avoided during gummed paper pressing, so that the product yield is improved, the cost is reduced and the efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery processing, and in particular to a battery core gluing device and a battery core gluing method. Background Art

[0002] In the existing battery processing technology, insulating stickers are generally provided between the battery cell and the shell and cover plate to achieve insulation between the battery cell and the shell and cover plate. In the conventional battery gluing method, the adhesive tape is attached to the outer side of the battery cell around the battery cell, and because part of the adhesive tape protrudes from the end face of the battery cell, it is necessary to perform gluing, that is, the part of the adhesive tape protruding from the end face of the battery cell is pressed toward the end face of the battery cell so that the adhesive tape is attached to the end face of the battery cell.

[0003] In the related art, a glue pressing device is used for glue pressing. However, in the glue pressing process of the battery, a current collecting plate is installed at the end of the battery cell, and the connecting piece of the current collecting plate is easily damaged during the glue pressing process. Therefore, how to reduce the damage of the connecting piece during the glue pressing process of the battery cell has become an urgent problem to be solved by those skilled in the art. Summary of the invention

[0004] The main purpose of the present invention is to provide a battery core glue pressing device, aiming to reduce the damage of the connecting piece during the battery core glue pressing process.

[0005] To achieve the above-mentioned purpose, the battery cell glue pressing device proposed in the present invention includes a battery cell transferring mechanism, a pressing mechanism, a first glue pressing driving mechanism and a glue pressing mechanism; the battery cell transferring mechanism is used to carry the battery cell and move along the first direction; the pressing mechanism is used to press the connecting piece on the battery cell collecting plate; the first glue pressing driving mechanism is used to drive the pressed battery cell to move along the second direction; the glue pressing mechanism is arranged on one side of the pressing mechanism along the first direction; wherein, when the glue pressing mechanism presses the end face of the battery cell coming from the second direction, the glue pressing mechanism forms a glue pressing surface that abuts against the end face of the battery cell.

[0006] In one embodiment, the glue pressing mechanism includes a pressing head and a rubber pushing sleeve; the pressing head is provided with a glue pressing hole; the rubber pushing sleeve is movably installed in the glue pressing hole along the second direction; wherein, when the glue is pressed on the end face of the battery cell, the end face of the battery cell abuts against the rubber pushing sleeve until the pressing head and the rubber pushing sleeve jointly form a glue pressing surface abutting against the end face of the battery cell, and the connecting piece avoids the pressing head and the rubber pushing sleeve.

[0007] In one embodiment, the rubber push sleeve includes a sleeve body and a plurality of rubber pressing ribs arranged at one end of the sleeve body, the plurality of rubber pressing ribs are arranged at intervals along the circumference of the sleeve body; the pressure head is provided with a plurality of circumferentially arranged rubber pressing holes; the plurality of rubber pressing ribs move in correspondence with the plurality of rubber pressing holes.

[0008] In one embodiment, the end surface of the glue pressing rib facing away from the sleeve body includes a guide surface and a first glue pressing plane; the guide surface is used to guide the incoming battery cell; and the first glue pressing plane is used to abut against the end surface of the battery cell.

[0009] In one embodiment, the glue pressing mechanism also includes a mounting seat, a centering pressure head and an elastic member; the centering pressure head is movably mounted on the mounting seat along the second direction through a linear bearing, the centering pressure head abuts against one end of the sleeve body away from the glue pressing rib, and an avoidance cavity is formed on the centering pressure head. The connecting piece on the battery cell collector plate extends into the avoidance cavity through the pressure head and the rubber pushing sleeve; the elastic member is arranged between the mounting seat and the centering pressure head to drive the pushing member to abut against the rubber pushing sleeve.

[0010] In one embodiment, the pressing mechanism includes a pressing seat and a pressing assembly. The pressing assembly is mounted on the pressing seat and is used to bend the connecting piece on the current collecting plate of the battery cell downward.

[0011] In one embodiment, the battery cell glue pressing device further includes a sheet lifting mechanism, which is disposed on the other side of the sheet pressing mechanism and is used to lift the connecting sheet of the battery cell collector plate after glue pressing.

[0012] In one embodiment, the sheet pressing assembly includes a plurality of sheet pressing rollers, which are rotatably mounted on a sheet pressing seat around an axis extending along a second direction; the plurality of sheet pressing rollers are arranged along a first direction, and at least partially inclined, wherein the inclined direction is downwardly inclined toward a direction close to the glue pressing mechanism; and / or, the sheet lifting mechanism includes a sheet lifting seat and a sheet lifting assembly installed on the sheet lifting seat, wherein the sheet lifting assembly is used to bend upwardly the connecting piece on the battery cell current collecting plate; the sheet lifting assembly includes a plurality of sheet lifting rollers, which are rotatably mounted on the sheet lifting seat around an axis extending along the second direction; the plurality of sheet lifting rollers are arranged along the first direction, and at least partially inclined, wherein the inclined direction is downwardly inclined toward a direction close to the glue pressing mechanism.

[0013] In one embodiment, the glue pressing mechanism is movably arranged along the second direction; the battery core glue pressing device further includes a second glue pressing driving mechanism to drive the glue pressing mechanism to move.

[0014] In addition, based on the above-mentioned glue pressing device, the present invention also proposes a battery core glue pressing method, comprising the following steps:

[0015] Controlling the cell transfer mechanism to transfer the cell to the sheet pressing mechanism to press the connecting sheet on the cell collector plate to adjust the connecting sheet to the middle of the cell;

[0016] Control the battery cell transfer mechanism to move the battery cell to the glue pressing mechanism, and control the first glue pressing drive mechanism to drag the battery cell toward the glue pressing mechanism to perform glue pressing on the end surface of the battery cell;

[0017] The battery cell transfer mechanism is controlled to transfer the battery cell to the sheet lifting mechanism to lift the connecting sheet on the battery cell collector plate to move the connecting sheet back to the initial position.

[0018] The technical solution of the present invention uses a sheet pressing mechanism to press the connecting sheet on the battery cell collector plate before glue pressing, so as to avoid the easily damaged area of ​​the connecting sheet during glue pressing, and uses a battery cell transfer mechanism to transfer the pressed battery cell to the corresponding position of the glue pressing mechanism, and drives the pressed battery cell to move along the second direction through the first glue pressing drive mechanism until the end face of the battery cell abuts against the glue pressing surface of the glue pressing mechanism for glue pressing, thereby pressing the adhesive paper on the peripheral side of the battery cell to the end face of the battery cell, achieving a good glue pressing effect, avoiding damage to the connecting sheet, thereby improving product yield, reducing costs and increasing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 A structural schematic diagram of an embodiment of a battery core glue laminating device provided by the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure of the first glue pressing driving mechanism;

[0022] Figure 3 for Figure 1 Structural diagram of the medium pressure glue mechanism;

[0023] Figure 4 for Figure 1 Structural diagram of the middle sheet pressing mechanism and the sheet lifting mechanism;

[0024] Figure 5 for Figure 4 The front view of the middle sheet pressing mechanism and the sheet lifting mechanism.

[0025] Description of Figure Numbers:

[0026] 100, battery cell glue pressing device; 1, battery cell transfer mechanism; 11, slide; 12, bearing seat; 121, claw; 2, tablet pressing mechanism; 21, tablet pressing seat; 22, tablet pressing roller; 3, first glue pressing drive mechanism; 31, first machine base; 32, push head mounting plate; 33, first driving cylinder; 34, driving push head; 35, second driving cylinder; 4, glue pressing mechanism; 41, press head; 411, glue pressing hole; 412, through hole; 4121, annular protrusion; 4121A , second glue pressing plane; 4122, limiting groove; 42, rubber pushing sleeve; 421, sleeve body; 4211, limiting rib; 422, glue pressing rib; 422A, guide surface; 422B, first glue pressing plane; 43, mounting seat; 44, centering pressure head; 441, avoidance cavity; 442, linear bearing; 45, elastic member; 5, film lifting mechanism; 51, film lifting seat; 52, film lifting roller; 6, second glue pressing driving mechanism; 61, second machine base; 62, third driving cylinder;

[0027] 200, battery cell; 201, connecting piece.

[0028] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] In the related art, a glue pressing device is used for glue pressing. However, in the glue pressing process of the battery, a current collecting plate is installed at the end of the battery cell. The connecting piece of the current collecting plate extends radially along the battery cell and protrudes from the side of the battery cell, which is easy to be damaged during the glue pressing process.

[0033] Based on this, the present invention proposes a battery core glue laminating device 100. Figure 1 In one embodiment of the present invention, the battery cell glue pressing device 100 includes a battery cell transfer mechanism 1, a sheet pressing mechanism 2, a first glue pressing driving mechanism 3 and a glue pressing mechanism 4; the battery cell transfer mechanism 1 is used to carry the battery cell 200 and move along the first direction; the sheet pressing mechanism 2 is used to press the connecting piece 201 on the current collecting plate of the battery cell 200; the first glue pressing driving mechanism 3 is used to drive the pressed battery cell 200 to move along the second direction; the glue pressing mechanism 4 is arranged on one side of the sheet pressing mechanism 2 along the first direction; wherein, when the glue pressing mechanism 4 presses the end face of the battery cell 200 supplied from the second direction, the glue pressing mechanism 4 forms a glue pressing surface abutting against the end face of the battery cell 200.

[0034] The technical solution of the present invention uses a sheet pressing mechanism 2 to press the connecting piece 201 on the current collecting disk of the battery cell 200 before gluing, so as to avoid the easily damaged area of ​​the connecting piece 201 during gluing, and uses the battery cell transfer mechanism 1 to transfer the pressed battery cell 200 to the corresponding position of the gluing mechanism 4, and drives the pressed battery cell 200 to move toward the gluing mechanism 4 through the first gluing drive mechanism 3 until the end face of the battery cell 200 abuts against the gluing surface of the gluing mechanism 4 for gluing, thereby pressing the adhesive paper on the peripheral side of the battery cell 200 to the end face of the battery cell 200, achieving a good gluing effect, avoiding damage to the connecting piece 201, thereby improving product yield and reducing costs and increasing efficiency.

[0035] Specifically, the battery cell transfer mechanism 1 includes a slide 11 and a support seat 12. The slide 11 extends along a first direction. The support seat 12 is installed on the slide 11 and can move along the first direction. A supporting claw 121 is provided on the support seat 12 to support the battery cell 200. The battery cell 200 can slide along the second direction on the supporting claw 121 under the push of the first glue pressing drive mechanism 3.

[0036] Specifically, see Figure 2 The first glue pressing driving mechanism 3 includes a first machine base 31, a pusher head mounting plate 32, a first driving cylinder 33, a pusher head and a second driving cylinder 35; the first machine base 31 is arranged on the glue pressing surface side of the glue pressing mechanism, and the pusher head mounting plate 32 is movably mounted on the machine base along the second direction; the first driving cylinder 33 is used to drive the pusher head 34 mounting plate; and the pusher head is movably mounted on the pusher head mounting plate 32 along the second direction, and the second driving cylinder 35 is used to drive the pusher head 34. In this arrangement, the first driving cylinder 33 drives the pusher head 34 mounting plate, so that the pusher head initially pushes the battery cell 200, and pushes the battery cell 200 to a position close to the pressing head 41, and then controls the second driving cylinder 35 to drive the pusher head 34, so that the pusher head slowly pushes the battery cell 200 against the glue pressing surface for glue pressing.

[0037] In one embodiment of the present invention, please refer to Figure 3 The glue pressing mechanism 4 includes a pressing head 41 and a rubber pushing sleeve 42; the pressing head 41 is provided with a glue pressing hole 411; the rubber pushing sleeve 42 is movably installed in the glue pressing hole 411 along the second direction; wherein, when the end face of the battery cell 200 is glued, the end face of the battery cell 200 abuts against the rubber pushing sleeve 42 until the pressing head 41 and the rubber pushing sleeve 42 jointly form a glue pressing surface abutting against the end face of the battery cell 200, and the connecting piece 201 avoids the pressing head 41 and the rubber pushing sleeve 42. In this way, when the battery cell 200 reaches the corresponding position of the glue pressing mechanism 4, the first glue pressing driving mechanism 3 first pushes the battery cell 200 until the end face of the battery cell 200 abuts against the rubber pushing sleeve 42, and further pushes the battery cell 200 to move. The battery cell 200 pushes the rubber pushing sleeve 42 to move in the direction away from the first glue pressing driving mechanism 3 until the end face of the battery cell 200 abuts against the rubber pushing sleeve 42 and the pressure head 41 at the same time. At this time, the pressure head 41 and the rubber pushing sleeve 42 jointly form a glue pressing surface abutting against the end face of the battery cell 200, and the part of the adhesive paper protruding from the end face of the battery cell 200 is completely pressed against the end face of the battery cell 200 by the glue pressing surface to complete the glue pressing, and during the glue pressing process, the connecting piece 201 forms an avoidance with the pressure head 41 and the rubber pushing sleeve 42 to avoid damage to the connecting piece 201.

[0038] Furthermore, the pressing head 41 is made of elastic material, specifically one or more of silicone, thermoplastic polyurethane, polycarbonate or high molecular polymer. This arrangement can prevent the battery cell 200 from being scratched and deformed during the gluing process, thereby improving the gluing effect.

[0039] In one embodiment of the present invention, the rubber push sleeve 42 includes a sleeve body 421 and a plurality of glue pressing ribs 422 arranged at one end of the sleeve body 421, and the plurality of glue pressing ribs 422 are arranged at intervals along the circumference of the sleeve body 421; the pressure head 41 is provided with a plurality of glue pressing holes 411 arranged circumferentially; and the plurality of glue pressing ribs 422 are movable in correspondence with the plurality of glue pressing holes 411. With such arrangement, when the battery cell 200 reaches the corresponding position of the glue pressing mechanism 4, the first glue pressing driving mechanism 3 first pushes the battery cell 200 until the end face of the battery cell 200 abuts against the glue pressing ribs 422, and further pushes the battery cell 200 to move, and the battery cell 200 pushes the rubber push sleeve 42 to move away from the first glue pressing driving mechanism 3, until the end face of the battery cell 200 abuts against the glue pressing ribs 422 and the pressure head 41 at the same time, and at this time, the pressure head 41 and the glue pressing ribs 422 jointly form a glue pressing surface abutting against the end face of the battery cell 200.

[0040] In one embodiment of the present invention, the end surface of the glue pressing rib 422 away from the sleeve body 421 includes a guide surface 422A and a first glue pressing plane 422B; the guide surface 422A is used to guide the incoming battery cell 200; the first glue pressing plane 422B is used to abut against the end surface of the battery cell 200. In this way, when the first glue pressing driving mechanism 3 pushes the battery cell 200 until the end surface of the battery cell 200 abuts against the rubber pushing sleeve 42, the first glue pressing driving mechanism 3 pushes the battery cell 200 and the adhesive paper to move along the guide surface 422A first so that the battery cell 200 faces the first glue pressing plane 422B, and at the same time, during the movement of the adhesive paper, the adhesive paper is gathered toward the center position along the guide surface 422A, thereby pushing the battery cell 200 to abut against the first glue pressing plane 422B, and further pushing the battery cell 200 and the rubber pushing sleeve 42 to move until the battery cell 200 abuts against the pressure head 41 and the first glue pressing plane 422B, and the glue pressing is completed.

[0041] Specifically, the guide surface 422A is inclined, and the inclination direction is from the outer side of the rubber pushing sleeve 42 toward the inner side thereof in a direction close to the rubber pressing pushing structure, and the first rubber pressing plane 422B extends radially.

[0042] Furthermore, at least a portion of the guide surface 422A is arranged in an arc shape, and the arc curves toward the outer side of the rubber pushing sleeve 42 .

[0043] It should be noted that when different pressing mechanisms 2 press the connecting piece 201 on the current collecting plate of the battery cell 200, the connecting piece 201 has different pressing positions, one of which is the position where the connecting piece 201 extends along the axial direction of the battery cell 200, and the other position is the position where the connecting piece 201 extends along the radial direction of the battery cell 200. For the pressing positions corresponding to different pressing mechanisms 2, the glue pressing mechanism 4 is correspondingly set to different structures. If the pressing mechanism 2 presses the connecting piece 201 to the position extending along the radial direction of the battery cell 200, the side of the pressing head 41 close to the first glue pressing driving mechanism 3 is set to a straight end face, and a plurality of glue pressing holes 411 are opened on the end face, so that avoidance can be formed.

[0044] In one embodiment of the present invention, the sheet pressing mechanism 2 presses the connecting sheet 201 to a position extending along the axial direction of the battery cell 200. Figure 1 and Figure 3 The glue pressing mechanism 4 also includes a mounting seat 43, a centering pressure head 44 and an elastic member 45; the centering pressure head 44 is movably mounted on the mounting seat 43 along the second direction through a linear bearing 442, and the centering pressure head 44 abuts against one end of the sleeve body 421 away from the glue pressing rib 422. The centering pressure head 44 forms an avoidance cavity 441, and the connecting piece 201 on the current collecting disk of the battery cell 200 extends into the avoidance cavity 441 through the pressure head 41 and the rubber pushing sleeve 42; the elastic member 45 (the figure shows the movable stroke of the elastic member 45) is arranged between the mounting seat 43 and the centering pressure head 44, and is used to drive the pushing member to abut against the rubber pushing sleeve 42. In this way, when the first glue pressing driving mechanism 3 pushes the battery cell 200, the connecting piece 201 on the current collecting disk of the battery cell 200 extends into the avoidance cavity 441 through the pressure head 41 and the rubber pushing sleeve 42, and the connecting piece 201 forms an avoidance with the pressure head 41 and the rubber pushing sleeve 42. After the first glue pressing driving mechanism 3 pushes the battery cell 200 until the end face of the battery cell 200 abuts against the rubber pushing sleeve 42 and the pressure head 41 at the same time to complete the glue pressing, the first glue pressing driving mechanism 3 moves away from the glue pressing mechanism 4, and the battery cell 200 and the glue pressing sleeve return to the position before abutting against the battery cell 200 under the action of the elastic member 45.

[0045] Specifically, a mounting hole extending along the second direction is provided on the mounting seat 43, the outer ring portion of the linear bearing 442 is arranged in the mounting hole, and the centering pressure head 44 is provided with a mounting rod, which is connected to the inner ring portion of the linear bearing 442. In this way, the centering pressure head 44 is movably arranged on the mounting seat 43 through the linear bearing 442, so that the centering pressure head 44 can be stably moved along the second direction, and then aligned with the rubber push sleeve 42 for stable rubber pressing.

[0046] The elastic member 45 is a compression spring. An opening is provided on a side of the avoidance cavity 441 facing the rubber push sleeve 42 to allow the connecting piece 201 to extend into the avoidance cavity 441 .

[0047] Specifically, a through hole 412 is provided on the pressure head 41 for the connection piece 201 on the current collecting plate of the power core 200 to pass through.

[0048] Furthermore, a plurality of glue pressing holes 411 are arranged along the circumference of the via hole 412 .

[0049] Furthermore, an annular protrusion 4121 is convexly formed on the inner wall of the through hole 412, and a plurality of glue pressing holes 411 are formed on the annular protrusion 4121. In this way, the annular protrusion 4121 forms a second glue pressing plane 4121A. During glue pressing, the first glue pressing driving mechanism 3 pushes the battery cell 200 until the end surface of the battery cell 200 abuts against the first glue pressing plane 422B and the second glue pressing plane 4121A at the same time.

[0050] Furthermore, a limiting groove 4122 is concavely formed on the inner side wall of the through hole 412 , and correspondingly, a limiting rib 4211 is convexly formed on the outer peripheral side of the sleeve body 421 to limit the range of movement of the rubber push sleeve 42 .

[0051] In one embodiment of the present invention, please refer to Figure 4 and Figure 5 The pressing mechanism includes a pressing seat 11 and a pressing assembly. The pressing assembly is installed on the pressing seat 11 and is used to bend the connecting piece on the battery cell collector plate downward.

[0052] In one embodiment of the present invention, the tablet pressing assembly includes a plurality of tablet pressing rollers 22; the plurality of tablet pressing rollers 22 are rotatably mounted on the tablet pressing seat 21 around an axis extending in the second direction; the plurality of tablet pressing rollers 22 are arranged in the first direction, and at least part of them are inclined, and the inclined direction is downwardly inclined toward the direction close to the glue pressing mechanism 4. With such an arrangement, when the battery cell transfer mechanism 1 carries the battery cell 200 to the corresponding position of the tablet pressing structure, the connecting sheet 201 is located below the pressing roller, and along with the moving direction of the battery cell 200, the tablet pressing roller 22 is inclined downward, so that the connecting sheet 201 is gradually pressed down to achieve tablet pressing.

[0053] Specifically, the pressing seat 21 is disposed on one side of the movable stroke of the battery cell transfer mechanism 1 along the first direction, and performs glue pressing when the battery cell transfer mechanism 1 carries the battery cell 200 and moves.

[0054] Specifically, a plurality of sheet pressing rollers 22 close to the sheet pressing mechanism 2 are arranged horizontally to ensure that the connecting sheet 201 does not twist after sheet pressing, which is convenient for subsequent glue pressing operations.

[0055] In one embodiment of the present invention, the battery cell glue pressing device 100 further includes a sheet lifting mechanism 5, which is arranged on the other side of the sheet pressing mechanism 2 and is used to lift the connecting sheet 201 of the current collecting plate of the battery cell 200 after glue pressing. In this way, the sheet is lifted after the glue pressing operation to restore the connecting sheet 201 to its initial position.

[0056] In one embodiment of the present invention, the sheet lifting mechanism 5 includes a sheet lifting seat 51 and a sheet lifting assembly installed on the sheet lifting seat 51, and the sheet lifting assembly is used to bend the connecting sheet on the battery cell collector plate upward; the sheet lifting assembly includes a plurality of sheet lifting rollers 52; the plurality of sheet lifting rollers 52 are rotatably installed on the sheet lifting seat 51 around an axis extending along the second direction; the plurality of sheet lifting rollers 52 are arranged along the first direction, and at least partially inclined, and the inclined direction is downwardly inclined toward the direction close to the glue pressing mechanism 4. In this way, when the battery cell transfer mechanism 1 carries the battery cell 200 to the corresponding position of the sheet lifting mechanism 5, the connecting sheet 201 is located above the pressing roller, and along with the moving direction of the battery cell 200, the pressing roller 22 is inclined upward, so that the connecting sheet 201 is gradually lifted for recovery.

[0057] Furthermore, the highest position of the lifting sheet assembly is at the same height as the lowest position of the glue pressing assembly. This arrangement enables the connecting sheet to be completely restored when the glue pressing assembly lifts the connecting sheet.

[0058] In one embodiment of the present invention, the glue pressing mechanism 4 is movably arranged along the second direction; the battery cell glue pressing device 100 further includes a second glue pressing driving mechanism 6 to drive the glue pressing mechanism 4 to move. With such arrangement, when the first glue pressing driving mechanism 3 drives the pressed battery cell 200 to move toward the glue pressing mechanism 4, the second glue pressing driving mechanism 6 can synchronously drive the glue pressing mechanism 4 to move toward the first glue pressing driving mechanism 3; after the glue pressing mechanism 4 completes the glue pressing, the battery cell 200 can be pushed back to the corresponding position with the glue pressing mechanism 4, so that the battery cell transfer mechanism 1 can transport the battery cell 200 and perform the next operation.

[0059] Specifically, the second glue pressing driving mechanism 6 includes a second machine base 61 and a third driving cylinder 62. The glue pressing mechanism 4 is movably arranged on the second machine base 61. The third driving cylinder 62 is used to drive the glue pressing mechanism 4. The mounting seat 43, the sheet pressing seat 21 and the sheet lifting seat of the glue pressing mechanism 4 are arranged on the second machine base 61.

[0060] In one embodiment of the present invention, the working process of the battery core glue laminating device 100 is as follows:

[0061] In the first step, the battery cell transfer mechanism 1 is located at the initial position, the battery cell 200 to be glued is placed on the battery cell transfer mechanism 1, and the battery cell transfer mechanism 1 is controlled to move the battery cell 200 to the corresponding position of the sheet pressing mechanism 2; then the battery cell transfer mechanism 1 is controlled to drive the battery cell 200 to slowly move toward the glue pressing mechanism 4, and the connecting sheet 201 passes through a plurality of gradually decreasing sheet pressing rollers 22 of the sheet pressing mechanism 2, and is gradually bent downward, until the battery cell 200 passes through the sheet pressing mechanism 2, and the connecting sheet 201 is bent to the sheet pressing position;

[0062] The second step is to control the battery cell transfer mechanism 1 to move the battery cell 200 to the corresponding position of the glue pressing mechanism 4, and then control the first glue pressing driving mechanism 3 to push the battery cell 200 to move toward the glue pressing mechanism 4. Under the push of the first glue pressing driving mechanism 3, the battery cell 200 and the adhesive paper move along the guide surface 422A of the glue pressing rib 422 until the end of the battery cell 200 abuts against the first glue pressing plane 422B, and the adhesive paper is pressed tightly on the end surface of the battery cell 200. The battery cell 200 moves further to abut against the second glue pressing plane 4121A. In this process, the connecting piece 201 extends into the avoidance cavity 441 through the pressure head 41 and the rubber pushing sleeve 42;

[0063] The third step is to control the second glue pressing driving mechanism 6 to drive the glue pressing mechanism 4 to make the battery cell 200 return to the corresponding position of the glue pressing mechanism 4 .

[0064] The fourth step is to control the battery cell transfer mechanism 1 to move the battery cell 200 to the corresponding position of the lifting mechanism 5; and then control the battery cell transfer mechanism 1 to drive the battery cell 200 to move slowly in the direction away from the glue pressing mechanism 4, and the connecting sheet 201 passes through the multiple pressing rollers 22 of the pressing mechanism 2 with gradually rising heights, and is gradually bent upward, until the battery cell 200 passes through the pressing mechanism 2 and the connecting sheet 201 is restored.

[0065] The present invention further provides a method for gluing a battery cell 200. The method for gluing a battery cell 200 is based on a battery cell gluing device 100. The specific structure of the battery cell gluing device 100 is as described above. The method for gluing a battery cell 200 includes the following steps:

[0066] S1, controlling the battery cell transfer mechanism 1 to transfer the battery cell 200 to the sheet pressing mechanism 2, so as to press the connecting sheet 201 on the current collecting plate of the battery cell 200, so as to adjust the connecting sheet 201 to the middle of the battery cell 200;

[0067] S2, controlling the battery cell transfer mechanism 1 to move the battery cell 200 to the glue pressing mechanism 4, and controlling the first glue pressing driving mechanism 3 to drag the battery cell 200 toward the glue pressing mechanism 4 to perform glue pressing on the end surface of the battery cell 200;

[0068] S3, controlling the battery cell transfer mechanism 1 to transfer the battery cell 200 to the sheet lifting mechanism 5, so as to lift the connecting sheet 201 on the current collecting plate of the battery cell 200, so as to move the connecting sheet 201 back to the initial position.

[0069] The technical solution of the present invention first controls the pressing mechanism 2 to press the connecting piece 201 on the current collecting disk of the battery cell 200 before controlling the gluing, and then controls the battery cell transferring mechanism 1 to transfer the pressed battery cell 200 to the corresponding position of the gluing mechanism 4 for gluing, and finally controls the battery cell transferring mechanism 1 to lift the connecting piece 201 on the current collecting disk of the battery cell 200 to restore it, thereby achieving a good gluing effect, avoiding damage to the connecting piece 201 without affecting subsequent processes, improving product yield, and reducing costs and increasing efficiency.

[0070] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A battery core glue laminating device, characterized in that: include: A battery cell transfer mechanism, used for carrying the battery cell and moving it along a first direction; A sheet pressing mechanism, used for pressing the connecting sheet on the collector plate of the battery cell; A first glue pressing driving mechanism is used to drive the pressed battery cell to move along a second direction; and A glue pressing mechanism, arranged on one side of the sheet pressing mechanism along the first direction; Wherein, when the glue pressing mechanism presses glue on the end surface of the battery cell coming from the second direction, the glue pressing mechanism forms a glue pressing surface abutting against the end surface of the battery cell.

2. The battery core glue laminating device according to claim 1, characterized in that: The glue pressing mechanism comprises: A pressing head, provided with a glue pressing hole; and A rubber pushing sleeve, movably mounted on the rubber pressing hole along a second direction; When the end face of the battery cell is pressed, the end face of the battery cell abuts against the rubber pushing sleeve until the pressing head and the rubber pushing sleeve jointly form a pressing surface abutting against the end face of the battery cell, and the connecting piece avoids the pressing head and the rubber pushing sleeve.

3. The battery core glue laminating device according to claim 2, characterized in that: The rubber push sleeve comprises a sleeve body and a plurality of rubber pressing ribs arranged at one end of the sleeve body, wherein the plurality of rubber pressing ribs are arranged at intervals along the circumference of the sleeve body; The pressure head is provided with a plurality of glue pressing holes arranged circumferentially; The plurality of glue pressing ribs move in correspondence with the plurality of glue pressing holes.

4. The battery core glue laminating device according to claim 2, characterized in that: The end surface of the glue pressing rib facing away from the sleeve body includes a guide surface and a first glue pressing plane; The guide surface is used to guide the incoming battery cells; The first glue pressing plane is used to abut against the end surface of the battery cell.

5. The battery core glue laminating device according to claim 2, characterized in that: The glue pressing mechanism also includes: Mounting seat; A centering pressure head is movably mounted on the mounting seat along the second direction through a linear bearing, and abuts against an end of the sleeve body away from the rubber pressing rib. The centering pressure head forms an avoidance cavity, and the connecting piece on the battery core collector plate extends into the avoidance cavity through the pressure head and the rubber pushing sleeve; and The elastic member is arranged between the mounting seat and the centering pressure head, and is used for driving the pushing member to abut against the rubber pushing sleeve.

6. The battery core glue laminating device according to claim 1, characterized in that: The tablet pressing mechanism comprises: a tablet press seat; and The pressing sheet assembly is installed on the pressing sheet seat and is used to bend the connecting sheet on the battery cell collector plate downward.

7. The battery core glue laminating device according to claim 6, characterized in that: The battery cell glue pressing device further comprises a sheet lifting mechanism, which is arranged at the other side of the sheet pressing mechanism and is used to lift the connecting sheet of the battery cell collector disk after glue pressing.

8. The battery core glue laminating device according to claim 7, characterized in that: The tablet pressing assembly comprises a plurality of tablet pressing rollers, which are rotatably mounted on the tablet pressing seat around an axis extending in the second direction; the plurality of tablet pressing rollers are arranged in the first direction, and at least partially inclined, and the inclined direction is downwardly inclined toward the direction close to the glue pressing mechanism; and / or, The sheet lifting mechanism comprises: a sheet lifting seat and a sheet lifting assembly installed on the sheet lifting seat, and the sheet lifting assembly is used to bend the connecting sheet on the battery cell collector plate upward; The sheet lifting assembly includes a plurality of sheet lifting rollers, which are rotatably mounted on the sheet lifting seat around an axis extending along the second direction; the plurality of sheet lifting rollers are arranged along the first direction, and at least partially inclined, and the inclined direction is downwardly inclined toward the direction close to the glue pressing mechanism.

9. The battery core glue laminating device according to claim 8, characterized in that: The glue pressing mechanism is movably arranged along the second direction; The battery core glue pressing device also includes a second glue pressing driving mechanism to drive the glue pressing mechanism to move.

10. A method for laminating a battery cell, based on the battery cell laminating device according to any one of claims 1 to 9, characterized in that: The battery core glue pressing device further includes a sheet lifting mechanism, which is arranged on the other side of the sheet pressing mechanism and is used to lift the connecting sheet of the battery core collector after glue pressing. The battery core glue pressing method includes the following steps: Controlling the battery cell transfer mechanism to transfer the battery cell to the sheet pressing mechanism to press the connecting sheet on the battery cell collector plate to adjust the connecting sheet to the middle of the battery cell; Controlling the battery cell transfer mechanism to move the battery cell to the glue pressing mechanism, and controlling the first glue pressing driving mechanism to drag the battery cell toward the glue pressing mechanism to perform glue pressing on the end surface of the battery cell; The battery cell transfer mechanism is controlled to transfer the battery cell to the sheet lifting mechanism to lift the connecting sheet on the battery cell current collecting plate, so as to move the connecting sheet back to the initial position.

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