Cylindrical battery cell production line and production process of cylindrical battery

Abstract

The invention belongs to the technical field of batteries, and discloses a cylindrical battery cell production line and a production process of a cylindrical battery. Comprising a first collector plate welding unit, a battery cell glue pressing unit, a second collector plate welding unit, a shell cleaning unit, a battery cell in-shell unit, a shell penetration welding unit, a cap welding unit and a sealing nail welding unit which are sequentially arranged in the battery cell conveying direction. The current collecting disc welding mechanism of the first current collecting disc welding unit is used for welding current collecting discs supplied by the current collecting disc feeding mechanism to a first pole, and the current collecting disc welding mechanism of the second current collecting disc welding unit is used for welding current collecting discs supplied by the current collecting disc feeding mechanism to a second pole; the battery core glue pressing unit is used for flattening the insulation glue protruding out of the edge of the first pole to the end face of the first pole, the shell cleaning unit is used for carrying out laser treatment on the shell, and the battery core in-shell unit is used for welding a second pole with the inner bottom wall of the shell through a current collecting disc. The cover cap welding unit is used for conducting cover closing pre-spot welding on the cover cap and the open end of the shell.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production, and in particular to a cylindrical battery production line and a production process for cylindrical batteries. Background Art

[0002] In the production process of cylindrical batteries, the battery cells need to undergo multiple treatments to finally form batteries. Among them, production needs to be carried out through a variety of different production devices to facilitate the automated production of batteries.

[0003] In the prior art, the automation level of multiple production devices is not high enough, often requiring manual intervention, and the production process is not adequately planned, resulting in low production efficiency of the production line. Summary of the invention

[0004] The main purpose of the present invention is to provide a cylindrical battery cell production line and a cylindrical battery production process, aiming to solve the problem of low production efficiency of the production line.

[0005] To achieve the above-mentioned purpose, the present invention provides a cylindrical battery cell production line, wherein the two opposite ends of the battery cell are respectively a first pole and a second pole, comprising: a first collector plate welding unit, a battery cell glue pressing unit, a second collector plate welding unit, a shell cleaning unit, a battery cell into the shell unit, a shell penetration welding unit, a cap welding unit, and a sealing nail welding unit are sequentially arranged along the battery cell conveying direction; or,

[0006] A first collector plate welding unit, a second collector plate welding unit, a cell glue pressing unit, a shell cleaning unit, a cell shell insertion unit, a shell penetration welding unit, a cap welding unit, and a sealing pin welding unit are sequentially arranged along the cell conveying direction;

[0007] The first collector plate welding unit and the second collector plate welding unit both include a collector plate feeding mechanism and a collector plate welding mechanism. The collector plate welding mechanism of the first collector plate welding unit is used to weld the collector plate supplied by the collector plate feeding mechanism to the first pole, and the collector plate welding mechanism of the second collector plate welding unit is used to weld the collector plate supplied by the collector plate feeding mechanism to the second pole;

[0008] A battery core glue pressing unit, used for pressing the insulating glue protruding from the edge of the first pole to the end surface of the first pole;

[0009] A shell cleaning unit, used for laser processing of the shell;

[0010] A battery cell insertion unit for pushing the battery cell into the housing, with the second pole facing the inner bottom wall of the housing;

[0011] A shell penetration welding unit for welding the second pole to the inner bottom wall of the shell through the current collecting plate;

[0012] A cap welding unit, used for pre-spot welding the cap to the opening end of the shell;

[0013] The sealing pin welding unit comprises a cap cleaning mechanism and a sealing pin welding mechanism, wherein the cap cleaning mechanism is used for cleaning the end surface of the cap, and the sealing pin welding mechanism is used for sealingly welding the sealing pin to the injection hole of the cap.

[0014] In one embodiment, the collecting tray feeding mechanism comprises:

[0015] The collecting plate conveyor line is used to convey the tray cups;

[0016] The collecting plate feeding device comprises a collecting plate feeding seat, wherein the collecting plate feeding seat is used for the installation of the collecting plate clip;

[0017] A current collecting plate positioning device, comprising a first current collecting plate positioning structure and a second current collecting plate positioning structure, wherein the first current collecting plate positioning structure is used to clamp the current collecting plate along a first horizontal direction, and the second current collecting plate positioning structure is used to adjust the current collecting plate clamped by the first positioning structure along a second horizontal direction; and

[0018] The collecting tray moving device has a movable stroke between the collecting tray feeding device, the collecting tray positioning device and the collecting tray conveying line, and is used to transfer the collecting tray at the collecting tray feeding device to the collecting tray positioning device, or to transfer the collecting tray at the collecting tray positioning device to the supporting cup of the collecting tray conveying line.

[0019] In one embodiment, the collecting tray feeding mechanism further comprises a pressing line disposed on the collecting tray conveying line, so as to press the collecting tray tightly into the supporting cup.

[0020] In one embodiment, the battery core laminating unit comprises:

[0021] A battery cell transfer device, used for carrying the battery cell and moving it along a moving direction;

[0022] A cell pressing device, used to press the connecting piece on the cell collector plate;

[0023] A first glue pressing driving device is used to drive the pressed battery cell to move along a second direction; and

[0024] A battery core glue pressing device, arranged on one side of the battery core pressing device along the first direction;

[0025] Wherein, when the battery cell glue pressing device presses glue on the end surface of the battery cell coming from the second direction, the battery cell glue pressing device forms a glue pressing surface abutting against the end surface of the battery cell.

[0026] In one embodiment, the battery cell glue pressing unit further includes a battery cell lifting device, which is arranged on the other side of the battery cell glue pressing device and is used to lift the connecting piece of the battery cell collector after glue pressing.

[0027] In one embodiment, the housing cleaning unit comprises:

[0028] A brush cleaning device, used for brushing away impurities on the end cover of the battery;

[0029] A battery wiping device, comprising a cleaning cloth supply device, a cleaning positioning device and a cleaning material transfer device, wherein the cleaning cloth supply device is used to provide a molded cloth of a preset length, the cleaning positioning device is used to position the battery, the cleaning material transfer device comprises a cleaning material transfer structure and a cleaning material transfer structure, the cleaning material transfer structure has a movable stroke between the cleaning cloth supply device and the cleaning material transfer structure, and is used to transfer the molded cloth to the cleaning material transfer structure, the cleaning material transfer structure has a movable stroke between the cleaning material transfer structure and the cleaning positioning device, and is used to pick up the molded cloth on the cleaning material transfer structure and wipe the liquid injection hole of the battery at the cleaning positioning device; and,

[0030] The laser cleaning device is used to clean the liquid injection hole of the battery and to roughen part of the end surface of the battery in the axial direction of the liquid injection hole.

[0031] In one embodiment, the housing cleaning unit further comprises a waste cloth collecting device disposed between the battery wiping device and the laser cleaning device, the waste cloth collecting device comprising:

[0032] A collection hopper for collecting waste cloth after wiping;

[0033] a connecting pipe, the inlet of which is connected to the collecting hopper; and

[0034] A collection box is provided at the outlet of the connecting pipe.

[0035] In one embodiment, the sealing pin welding unit comprises a sealing pin feeding portion movably arranged in a horizontal direction and in a vertical direction, and the sealing pin feeding portion is used to drive the sealing pin to be fed to the liquid injection hole of the battery; and

[0036] A sealing pin welding mechanism is used to weld the sealing pin to the liquid injection hole of the battery

[0037] The present invention also provides a production process for a cylindrical battery, wherein the cylindrical battery comprises a shell, a battery cell and a cap, and comprises a cylindrical battery cell production line according to any one of the above;

[0038] The production process of the cylindrical battery comprises the following steps:

[0039] S1, welding a first current collecting plate on the first pole of the battery cell;

[0040] S2, pressing the insulating glue on the battery cell protruding from the edge of the first pole onto the end surface of the first pole of the battery cell;

[0041] S3, welding a second current collecting plate on the second pole of the battery cell;

[0042] S4, performing laser cleaning on the shell;

[0043] S5, pushing the battery cell into the shell, wherein the second pole faces the inner bottom wall of the shell;

[0044] S6, welding the second pole of the battery cell to the inner bottom wall of the shell through the current collecting plate;

[0045] S7, pre-spot welding the cover cap to one end of the opening of the shell;

[0046] S8. Weld a sealing nail to seal the injection hole of the battery cell.

[0047] The present invention also provides a production process for a cylindrical battery, wherein the cylindrical battery comprises a shell, a battery cell and a cap, and comprises a cylindrical battery cell production line according to any one of the above;

[0048] The production process of the cylindrical battery comprises the following steps:

[0049] S1, welding a first current collecting plate on the first pole of the battery cell;

[0050] S2, welding a second current collecting plate on the second pole of the battery cell;

[0051] S3, pressing the insulating glue on the battery cell protruding from the edge of the first pole onto the end surface of the first pole of the battery cell;

[0052] S4, performing laser cleaning on the shell;

[0053] S5, pushing the battery cell into the shell, wherein the second pole faces the inner bottom wall of the shell;

[0054] S6, welding the second pole of the battery cell to the inner bottom wall of the shell through the current collecting plate;

[0055] S7, pre-spot welding the cover cap to one end of the opening of the shell;

[0056] S8. Weld a sealing nail to seal the injection hole of the battery cell.

[0057] The present invention provides a cylindrical battery cell production line, wherein the battery cell comprises a first pole and a second pole which are arranged opposite to each other. During the production process, the battery cell first passes through the first collector plate welding unit along the conveying direction of production, and the collector plate is welded on the first pole. Then, the battery cell may first pass through the battery cell glue pressing unit to flatten the insulating glue on the edge of the first pole, or may first pass through the second collector plate welding unit to weld the collector plate on the second pole. After the welding of the collector plates at both ends and the flattening of the insulating glue are completed, the battery cell may then pass through the shell cleaning unit, and then pass through the battery cell shell entry unit to put the battery cell into the cleaned shell, and weld the battery cell and the shell when passing through the shell penetration welding unit, and finally pass through the cap welding unit and the sealing nail welding unit to weld the corresponding parts of the battery cell to complete the production of the battery cell. The entire production line includes the entire process of battery cell production, and there is no need for manual participation in the production steps. The production process is optimized, and the production efficiency can be effectively improved to ensure the production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 It is a flowchart of a cylindrical battery cell production line provided by an embodiment of the present invention;

[0059] Figure 2 A schematic structural diagram of an embodiment of a collecting plate feeding mechanism provided by the present invention;

[0060] Figure 3 for Figure 2 A schematic diagram of the structure of the collector plate positioning device;

[0061] Figure 4 for Figure 2 A schematic diagram of the structure of the collecting plate feeding device in FIG.

[0062] Figure 5 for Figure 2 A partial structural schematic diagram of the collector plate conveyor line;

[0063] Figure 6 A structural schematic diagram of an embodiment of a battery core glue laminating unit provided by the present invention;

[0064] Figure 7 for Figure 6 A schematic diagram of the structure of the first glue pressing driving device;

[0065] Figure 8 for Figure 6 Schematic diagram of the structure of the battery cell glue pressing device;

[0066] Fig. 9 for Figure 6 A schematic diagram of the structure of the cell pressing device and the cell lifting device;

[0067] Fig.10 for Fig. 9The front view of the cell pressing device and the cell lifting device;

[0068] Fig.11 A schematic structural diagram of an embodiment of a shell cleaning unit provided by the present invention;

[0069] Fig.12 for Fig.11 A schematic diagram of the structure of the medium brush cleaning device;

[0070] Fig.13 for Fig.11 A schematic diagram of the structure of the laser cleaning device;

[0071] Fig.14 for Fig.11 Schematic diagram of the battery sorting mechanism in

[0072] Fig.15 for Figure 1 Schematic diagram of the structure of the sealing pin welding unit.

[0073] Description of Figure Numbers:

[0074] 100. Cylindrical cell production line; 1. First collector plate welding unit; 11. Collector plate feeding mechanism; 111. Collector plate conveyor line; 1112. Pressing line; 112. Collector plate feeding device; 1121. Collector plate feeding seat; 1123. Feeding lifting structure; 113. Collector plate positioning device; 1131. Collector plate first positioning structure; 11311. First positioning part; 113111. First positioning section; 113112. Second positioning section; 113113. First guiding slope; 1132. Collector plate second positioning structure; 11321. Positioning seat; 11322. Second positioning; 1 13221, second guide slope; 113222, clamping convex part; 114, collecting plate material transfer device; 1141, collecting plate material transfer seat; 1142, rotating frame; 1143, adsorption part; 115, collecting plate detection device; 1151, detection seat; 1152, detection sensor; 2, battery cell glue pressing unit; 21, battery cell transfer device; 211, slide; 212, bearing seat; 2121, claw; 22, battery cell tablet pressing device; 221, 222, 23, first glue pressing drive device; 231, first machine base; 232, push head mounting plate; 233, first driving cylinder; 234, mounting plate ; 235, second driving cylinder; 24, battery core glue pressing device; 241, pressure head; 2411, glue pressing hole; 2412, through hole; 24121, annular protrusion; 24121A, second glue pressing plane; 24122, limiting groove; 242, push rubber sleeve; 2421, sleeve body; 2422, glue pressing rib; 2422A, guide surface; 2422B, first glue pressing plane; 24211, limiting rib; 243, mounting seat; 244, centering pressure head; 2441, avoidance cavity; 2442, linear bearing; 245, elastic member; 25, lifting mechanism; 251, lifting seat; 252, lifting Roller; 26, second glue pressing drive mechanism; 261, second machine base; 262, third drive cylinder; 3, second collector plate welding unit; 4, shell cleaning unit; 41, brush cleaning device 411, cleaning clamping structure; 412, brush structure; 4121, dust hood; 4122, suction unit; 42, battery wiping device; 43, laser cleaning device; 431, laser dust suction unit; 44, waste cloth collecting device; 441, cache mechanism; 442, code scanning mechanism; 443, rejection mechanism; 5, battery cell into shell unit; 6, shell penetration welding unit; 7, cap welding unit; 8, sealing nail welding unit.

[0075] 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

[0076] 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.

[0077] 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 under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0078] 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 defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies 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 the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0079] See also Figure 1 The present invention provides a cylindrical battery production line 100, wherein the two opposite ends of the battery cell are respectively a first pole and a second pole, comprising: a first collector plate welding unit 1, a battery cell glue pressing unit 2, a second collector plate welding unit 3, a shell cleaning unit 4, a battery cell shell insertion unit 5, a shell penetration welding unit 6, a cap welding unit 7, and a sealing pin welding unit 8 are sequentially arranged along the battery cell conveying direction; or,

[0080] A first collector plate welding unit 1, a second collector plate welding unit 3, a cell glue pressing unit 2, a shell cleaning unit 4, a cell shell insertion unit 5, a shell penetration welding unit 6, a cap welding unit 7, and a sealing pin welding unit 8 are sequentially arranged along the cell conveying direction;

[0081] The first collector plate welding unit 1 and the second collector plate welding unit 3 both include a collector plate feeding mechanism 11 and a collector plate welding mechanism 12. The collector plate welding mechanism 12 of the first collector plate welding unit 1 is used to weld the collector plate supplied by the collector plate feeding mechanism 11 to the first pole, and the collector plate welding mechanism 12 of the second collector plate welding unit 3 is used to weld the collector plate supplied by the collector plate feeding mechanism 11 to the second pole; the battery cell glue pressing unit 2 is used to flatten the insulating glue protruding from the edge of the first pole to the end face of the first pole; the shell cleaning unit 4 is used to The shell is laser processed; the battery cell into the shell unit 5 is used to push the battery cell into the shell, with the second pole facing the inner bottom wall of the shell; the shell penetration welding unit 6 is used to weld the second pole to the inner bottom wall of the shell through the collecting plate; the cap welding unit 7 is used to pre-spot weld the cap to one end of the opening of the shell; the sealing nail welding unit 8 includes a cap cleaning mechanism 81 and a sealing nail welding mechanism 82, the cap cleaning mechanism 81 is used to clean the end face of the cap, and the sealing nail welding mechanism 82 is used to seal and weld the sealing nail to the injection hole of the cap.

[0082] The present invention provides a cylindrical battery cell production line 100, wherein the battery cell comprises a first pole and a second pole which are arranged opposite to each other. During the production process, the battery cell first passes through the first collector plate welding unit 1 along the conveying direction of production, and the collector plate is welded on the first pole. Then, the battery cell may first pass through the battery cell glue pressing unit 2 to flatten the insulating glue on the edge of the first pole, or may first pass through the second collector plate welding unit 3 to weld the collector plate on the second pole. After the welding of the collector plates at both ends and the flattening of the insulating glue are completed, the battery cell may then pass through the shell cleaning unit 4, and then pass through the battery cell shell insertion unit 5 to put the battery cell into the cleaned shell, and weld the battery cell and the shell when passing through the shell penetration welding unit 6. Finally, the battery cell may pass through the cap welding unit 7 and the sealing nail welding unit 8 to weld the corresponding parts of the battery cell to complete the production of the battery cell. The entire production line includes the entire process of battery cell production, and there is no need for manual participation in the production steps. The production process is optimized, and the production efficiency can be effectively improved to ensure the production quality.

[0083] It should be noted that the battery cell includes a first pole and a second pole which are arranged opposite to each other. The first pole can be a negative pole and the second pole can be a positive pole, or the first pole can be a positive pole and the second pole can be a negative pole. Specifically, in this embodiment, the first pole is a positive pole and the second pole is a negative pole.

[0084] Specifically, in this embodiment, the collecting plate feeding mechanism 11 includes a collecting plate conveying line 111, a collecting plate feeding device 112, a collecting plate positioning device 113 and a collecting plate moving device 114; the collecting plate conveying line 111 is used to convey the tray; the collecting plate feeding device 112 includes a collecting plate feeding seat 1121, and the collecting plate feeding seat 1121 is used for the installation of the collecting plate clip; the collecting plate positioning device 113 includes a first collecting plate positioning structure 1131 and a second collecting plate positioning structure 1132, and the first collecting plate positioning structure 1131 is used to move the collecting plate along the collecting plate. The collecting plate is clamped in the first horizontal direction, and the second positioning structure 1132 of the collecting plate is used to adjust the collecting plate clamped by the first positioning structure 1131 along the second horizontal direction; the current collecting plate moving device 114 has a movable stroke between the current collecting plate feeding device 112, the current collecting plate positioning device 113 and the current collecting plate conveying line 111, and is used to transfer the current collecting plate at the current collecting plate feeding device 112 to the current collecting plate positioning device 113, or to transfer the current collecting plate at the current collecting plate positioning device 113 to the support cup of the current collecting plate conveying line 111.

[0085] In the technical solution of the present invention, when it is necessary to transfer the current collecting disk to the support cup on the current collecting disk conveyor line 111, the current collecting disk moving device 114 first moves to the current collecting disk feeding device 112, picks up the current collecting disk in the current collecting disk clip of the current collecting disk feeding seat 1121, and then moves to the current collecting disk positioning device 113 to transfer the current collecting disk to the current collecting disk positioning device 113, the first positioning structure 1131 first adjusts the position of the current collecting disk along the first direction, and the current collecting disk second positioning structure 1132 then adjusts the position of the current collecting disk along the second direction, and the current collecting disk moving device 114 then moves to the current collecting disk conveyor line 111 to accurately place the adjusted current collecting disk into the support cup on the current collecting disk conveyor line 111. In this way, the support cup is set to carry the current collecting disk, and the current collecting disk conveyor line 111 is set to The tray carrying the current collecting disc is transported to the battery cell housing, and the current collecting disc feeding device 112 is provided to supply the current collecting disc, and the current collecting disc positioning device 113 is provided to adjust the position of the current collecting disc, so that the current collecting disc moving device 114 can accurately place the current collecting disc in the tray, and at the same time, the material moving structure is provided so that the current collecting disc is transferred from the current collecting disc feeding device 112 to the current collecting disc positioning device 113 to adjust the position of the current collecting disc, and then the adjusted current collecting disc is transferred to the current collecting disc conveying line 111 so that the current collecting disc is accurately placed in the tray, which can effectively reduce the error of the current collecting disc in the transfer process, so that the current collecting disc feeding mechanism 11 can accurately place the current collecting disc in the tray, thereby solving the problem of large error of the existing current collecting disc feeding mechanism 11 when transferring the current collecting disc.

[0086] It should be noted that there are multiple first directions and second directions, for example, the first direction is the front-to-back direction, the second direction is the left-to-right direction, or the first direction is the left-to-right direction, the second direction is the front-to-back direction, etc., and the present invention does not limit this. Among them, the two ends of the current collecting plate of the cylindrical battery are arranged in a circular shape to adapt to the shape of the battery.

[0087] For further information, see Figure 2 and Figure 3The first positioning structure 1131 includes two first positioning parts 11311 and two first positioning driving devices. The two first positioning parts 11311 are movably arranged along the first horizontal direction to clamp the collecting plate. The two first positioning driving devices respectively drive and connect the two first positioning parts 11311 to drive the two first positioning parts 11311 to move. In this way, the two first positioning parts 11311 are arranged to center and clamp the collecting plate, and the two first positioning driving devices are arranged to respectively drive the two first positioning parts 11311 to move, so as to clamp the collecting plate in the middle position of the two first positioning parts 11311.

[0088] It can be understood that there are multiple ways for the first positioning structure 1131 to clamp the current collecting plate. In other embodiments, the first positioning structure 1131 includes a first positioning reference portion and a first positioning clamping portion, and the first positioning clamping portion is movably arranged along the first horizontal direction to push the current collecting plate against the first positioning reference portion, thereby clamping the current collecting plate. Furthermore, the first positioning drive device can be a drive cylinder or a drive oil cylinder, etc., and the present invention does not limit this.

[0089] In one embodiment of the present invention, the first positioning portion 11311 is partially concave so that two first positioning portions 11311 are connected to form a mounting groove for the current collecting plate to be installed, so that the two first positioning portions 11311 can clamp the current collecting plate along the first direction.

[0090] Since the collecting plate needs to be adjusted in the second direction after adjusting its position in the first direction, in the present embodiment, the first positioning portion 11311 includes a first positioning section 113111 and a second positioning section 113112, the first positioning section 113111 extending in the second horizontal direction, the second positioning section 113112 being provided at one end of the first positioning section 113111 away from the second positioning structure 1132, and the second positioning section 113112 extending in the first horizontal direction. In this way, the first positioning section 113111 is provided so as to clamp the collecting plate in the first direction, and the second positioning section 113112 is provided so as to allow the collecting plate to abut against the collecting plate, so as to cooperate with the second positioning structure 1132 to adjust the position of the collecting plate, so that the first positioning section 113111, the second positioning section 113112 and the second positioning structure 1132 form a three-point fixed circle, thereby helping to improve the positioning accuracy of the collecting plate positioning device 113.

[0091] In order to facilitate the current collecting plate moving device 114 to place the current collecting plate into the current collecting plate positioning device 113, in this embodiment, the first positioning portion 11311 is provided with a first guide slope 113113, and its inclination direction is downwardly inclined from the outer side of the first positioning portion 11311 toward the inner side of the first positioning portion 11311, so that when the current collecting plate moving device 114 places the current collecting plate into the current collecting plate positioning device 113, the current collecting plate is guided into a preset position, so that the two first positioning portions 11311 can clamp and position the current collecting plate, thereby enabling the first positioning structure 1131 to adjust the position of the current collecting plate.

[0092] It should be noted that the above two related technical features: "The first positioning portion 11311 includes a first positioning section 113111 and a second positioning section 113112, the first positioning section 113111 is extended along the second horizontal direction, the second positioning section 113112 is arranged at the end of the first positioning section 113111 away from the second positioning structure 1132, and the second positioning section 113112 extends along the first horizontal direction", "The first positioning portion 11311 is provided with a first guide slope 113113, and its inclination direction is downwardly inclined from the outer side of the first positioning portion 11311 to the inner side of the first positioning portion 11311". You can choose one of them or set them at the same time. Obviously, setting them at the same time will have a better effect.

[0093] In one embodiment of the present invention, the second positioning structure 1132 includes a positioning seat 11321 and two second positioning portions 11322 spaced apart from each other along the first horizontal direction on the positioning seat 11321, and the positioning seat 11321 can be movably arranged along the second horizontal direction, so that the movement of the positioning seat 11321 can drive the two second positioning portions 11322 to move along the second direction, so as to drive the two sides of the current collecting plate to abut against the corresponding two first positioning portions 11311, so that the second positioning structure 1132 can adjust the position of the current collecting plate along the second direction. In another embodiment, the two second positioning portions 11322 can be movably arranged along the first horizontal direction, and when the two second positioning portions 11322 movably clamp the current collecting plate along the first direction, the position of the current collecting plate can move along the second direction, so that the second positioning structure 1132 can adjust the position of the current collecting plate along the second direction.

[0094] It should be noted that the above two related technical features: "the positioning seat 11321 can be movably arranged along the second horizontal direction" and "the two second positioning parts 11322 can be movably arranged along the first horizontal direction" can be set one by one or at the same time. Obviously, setting them at the same time will have a better effect.

[0095] Furthermore, in one embodiment, the second positioning structure 1132 further includes a second positioning drive device, which drives and connects the positioning seat 11321 so as to drive the positioning seat 11321 to move along the second direction. It is understandable that the second positioning drive device can be a driving cylinder or a driving oil cylinder, etc., and the present invention does not limit this. In another embodiment, the second positioning structure 1132 further includes two second positioning clamping drive devices, and the two second positioning clamping drive devices respectively drive and connect the two second positioning parts 11322 so that the two second positioning parts 11322 can clamp the collecting plate.

[0096] Further, a clamping protrusion 113222 is convexly provided on one side opposite to the two second positioning portions 11322, and the width of the clamping protrusion 113222 in the second direction is gradually increased from the inner side of the second positioning portion 11322 toward the outer side thereof, so that when the two second positioning portions 11322 are close to each other along the first direction, the two clamping protrusions 113222 can drive the current collecting plate to move along the second direction, so that the second positioning structure 1132 can adjust the position of the current collecting plate along the second direction. It can be understood that the current collecting plate is formed with a clamping groove corresponding to the clamping protrusion 11322, so that when the second positioning portion 11322 moves along the first direction, the current collecting plate is driven to move along the second direction.

[0097] In one embodiment of the present invention, the second positioning portion 11322 is provided with a second guide slope 113221, which is inclined downward from the outer side of the second positioning portion 11322 toward the inner side of the second positioning portion 11322, so that when the current collecting plate moving device 114 places the current collecting plate into the current collecting plate positioning device 113, the current collecting plate is guided into a preset position, so that the two second positioning portions 11322 can clamp and position the current collecting plate, thereby enabling the second positioning structure 1132 to adjust the position of the current collecting plate.

[0098] In one embodiment of the present invention, a plurality of the collecting tray positioning devices 113 are provided, and the plurality of the collecting tray positioning devices 113 are spaced apart along the first direction. Thus, by providing a plurality of the collecting tray positioning devices 113, a plurality of the collecting trays can be positioned at the same time, thereby helping to improve the feeding efficiency of the collecting tray feeding mechanism 11.

[0099] In order to enable the current collecting plate material moving device 114 to transfer one current collecting plate at a time, in the present embodiment, the current collecting plate positioning device 113 includes a current collecting plate detection device 115, and the current collecting plate detection device 115 includes a detection seat 1151, a detection sensor 1152 and a detection drive device. The detection seat 1151 is movably arranged along the second horizontal direction, and the detection sensor 1152 is arranged on the detection seat 1151 to detect whether the current collecting plates of the first positioning structure 1131 are stacked. The detection drive device drives the detection seat 1151. In this way, by setting the detection seat 1151, the detection sensor 1152 is driven to move along the second direction, so that the detection sensor 1152 can avoid the current collecting plate moving device 114 to avoid the interference between the detection sensor 1152 and the current collecting plate moving device 114, and facilitate the current collecting plate moving device 114 to take and place the current collecting plate, and by setting the detection sensor 1152, the number of current collecting plates on the current collecting plate positioning device 113 is detected to prevent the presence of multiple current collecting plates, so that the current collecting plate moving device 114 can only move one current collecting plate at a time, and at the same time, by setting the detection drive device to drive the detection seat 1151 to move, so that the detection sensor 1152 can avoid the current collecting plate moving device 114 to prevent the detection sensor 1152 from interfering with the current collecting plate moving device 114. It can be understood that the detection drive device can be a drive cylinder, or a drive oil cylinder, etc., and the present invention is not limited to this.

[0100] Furthermore, the collecting plate detection device 115 and the collecting plate positioning device 113 are arranged in a one-to-one correspondence as a positioning group, and a plurality of the positioning groups are arranged, and a plurality of the positioning seats 11321 are arranged at intervals along the first direction. In this way, by setting a plurality of the positioning groups, a plurality of the collecting plates can be positioned at the same time, thereby helping to improve the feeding efficiency of the collecting plate feeding mechanism 11.

[0101] In one embodiment of the present invention, see Figure 4The collecting plate feeding device 112 includes a collecting plate feeding seat 1121 and a feeding clamping structure 1122. The collecting plate feeding seat 1121 is used for the installation of the collecting plate clip. The feeding clamping structure 1122 includes a feeding clamping portion 11221 and a feeding driving device. The feeding clamping portion 11221 is movably arranged in the up-down direction to clamp the collecting plate feeding seat 1121 on the fixing member. The feeding driving device drives and connects the feeding clamping portion 11221. It is used to drive the feeding holding part 11221 to move in the up and down direction. In this way, by setting the collecting disc feeding seat 1121, the collecting disc clip can be installed, and by setting the feeding holding part 11221, the collecting disc clip can be pressed on the collecting disc feeding seat 1121 to prevent the collecting disc clip from rising synchronously with the collecting disc. At the same time, by setting the feeding driving device, the feeding holding part 11221 can be driven to move so as to load and unload the collecting disc clip. Furthermore, the collecting disc feeding device 112 is arranged to move in the horizontal direction so as to transport the collecting disc to the feeding position, which is convenient for the collecting disc moving device 114 to pick up the collecting disc and can also move the empty collecting disc feeding device 112 out of the feeding position.

[0102] In one embodiment, a plurality of current collecting plates are stacked up and down in the current collecting plate clip. Furthermore, the current collecting plate clip includes a clip sleeve to drive and movably install a clip bottom plate in the clip sleeve in the up and down directions, and the feeding device also includes a feeding lifting structure 1123 that drives and connects the clip bottom plate to lift the clip bottom plate upward so that the current collecting plate moving device 114 can pick up the current collecting plates in the current collecting plate clip. It can be understood that the feeding lifting structure 1123 can be a driving cylinder or a driving oil cylinder, etc., as long as it can drive the clip bottom plate to rise, and the present invention does not limit this.

[0103] In one embodiment of the present invention, see Figure 2The collecting plate material transfer device 114 includes a collecting plate material transfer seat 1141, a rotating frame 1142 and a plurality of adsorption parts 1143. The collecting plate material transfer seat 1141 is movably arranged in the horizontal direction, and its movable stroke passes through the collecting plate feeding device 112, the positioning mechanism and the collecting plate conveyor line 111. The rotating frame 1142 is rotatably installed on the collecting plate material transfer seat 1141 around an axis extending in the up-down direction. A plurality of adsorption parts 1143 are installed on the rotating frame 1142. The plurality of adsorption parts are arranged at intervals along the circumference of the rotating frame 1142 to absorb the collecting plate. In this way, by setting the collecting plate material transfer seat 1141, the adsorption parts 1143 can be located between the collecting plate feeding device 112 and the collecting plate conveyor line 111. The disc positioning device 113 is switched between the collecting disc conveyor line 111 to transfer the collecting disc from the collecting disc feeding device 112 to the collecting disc positioning device 113 for adjustment, and the adjusted collecting disc is transferred to the collecting disc conveyor line 111 so as to be accurately placed in the tray cup, and the rotating frame 1142 is provided so as to provide a plurality of the adsorption parts 1143, which is beneficial for picking up a plurality of the collecting discs at one time and improving the feeding efficiency of the collecting disc feeding mechanism 11, and at the same time, a plurality of the adsorption parts 1143 are provided so as to take and place the collecting disc, so that the collecting disc transferring device 114 can transfer the collecting disc from the collecting disc feeding device 112 to the tray cup on the collecting disc conveyor line 111.

[0104] It can be understood that the collecting plate material moving device 114 also includes a material moving driving device and a material moving rotating device. The material moving driving device drives the connecting current collecting plate material moving seat 1141, and the material moving rotating device drives the connecting current collecting plate material moving seat 1141. The rotating frame 1142 is thus connected. Thus, the material moving driving device is provided so as to drive the collecting plate material moving seat 1141 to move horizontally, and the material moving rotating device is provided so as to drive the rotating frame 1142 to rotate, so as to switch the adsorption portion 1143 at different positions to pick up and place the collecting plate.

[0105] In order to fix the collecting plate in the bracket, in this embodiment, refer to Figure 5 The collecting plate feeding mechanism 11 also includes a pressing line 1112 arranged on the collecting plate conveying line 111, which is used to press the collecting plate into the supporting cup. In this way, by setting the pressing line 1112, the collecting plate is pressed into the receiving groove of the supporting cup to prevent the position of the collecting plate from moving when the supporting cup moves.

[0106] It can be understood that the support cup is provided with a receiving groove for installing the collecting plate, and the upper end surface of the support cup is provided with a connecting groove connected to the receiving groove, and the connecting groove is used to accommodate the pressing line. The connecting groove includes two connecting groove sections, and the two connecting groove sections are respectively arranged on both sides of the receiving groove, so that the pressing line can press the collecting plate tightly in the receiving groove.

[0107] On the other hand, see Figure 6 The battery cell glue pressing unit 2 includes a battery cell transfer device 21, a battery cell pressing device 22, a first glue pressing drive device 23 and a battery cell glue pressing device 24; the battery cell transfer device 21 is used to carry the battery cell and move along the moving direction; the battery cell pressing device 22 is used to press the connecting piece on the battery cell collecting plate; the first glue pressing drive device 23 is used to drive the pressed battery cell to move along the second direction; the battery cell glue pressing device 24 is arranged on one side of the battery cell pressing device 22 along the first direction; wherein, when the battery cell glue pressing device 24 presses the end face of the battery cell coming from the second direction, the battery cell glue pressing device 24 forms a glue pressing surface abutting against the end face of the battery cell.

[0108] The technical solution of the present invention uses a cell pressing device 22 to press the connecting piece on the cell collecting disk before gluing, so as to avoid the easily damaged area of ​​the connecting piece during gluing, and uses a cell transferring device 21 to transfer the pressed cell to the corresponding position of the cell gluing device 24, and drives the pressed cell to move toward the cell gluing device 24 through the first gluing driving device 23 until the end face of the cell abuts against the gluing surface of the cell gluing device 24 for gluing, thereby pressing the adhesive paper on the side of the cell to the end face of the cell, achieving a good gluing effect, avoiding damage to the connecting piece, thereby improving product yield, reducing costs and increasing efficiency.

[0109] Specifically, the battery cell transferring device 21 includes a slide 211 and a supporting seat 212. The slide 211 extends along a first direction. The supporting seat 212 is installed on the slide 211 and can move along the first direction. A supporting claw 2121 is provided on the supporting seat 212 to support the battery cell. The battery cell can slide along the second direction on the supporting claw 2121 under the push of the first glue pressing driving device 23.

[0110] Specifically, see Figure 7The first glue pressing driving device 23 includes a first machine base 231, a pusher head mounting plate 232, a first driving cylinder 233, a pusher head and a second driving cylinder 235; the first machine base 231 is arranged on the glue pressing surface side of the glue pressing structure, and the pusher head mounting plate 232 is movably mounted on the machine base along the second direction; the first driving cylinder 233 is used to drive the pusher head 234 mounting plate; and the pusher head is movably mounted on the pusher head mounting plate 232 along the second direction, and the second driving cylinder 235 is used to drive the pusher head 234. In this arrangement, the first driving cylinder 233 drives the pusher head 234 mounting plate, so that the pusher head initially pushes the battery cell and pushes the battery cell to a position close to the pressing head 241, and then controls the second driving cylinder 235 to drive the pusher head 234, so that the pusher head slowly pushes the battery cell against the glue pressing surface for glue pressing.

[0111] In one embodiment of the present invention, please refer to Figure 8 The battery cell glue pressing device 24 includes a pressing head 241 and a glue pushing sleeve 242; the pressing head 241 is provided with a glue pressing hole 2411; the glue pushing sleeve 242 is movably installed in the glue pressing hole 2411 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 glue pushing sleeve 242 until the pressing head 241 and the glue pushing sleeve 242 jointly form a glue pressing surface abutting against the end face of the battery cell, and the connecting piece avoids the pressing head 241 and the glue pushing sleeve 242. With such arrangement, when the battery cell reaches the corresponding position of the battery cell glue pressing device 24, the first glue pressing driving device 23 first pushes the battery cell until the end face of the battery cell abuts against the glue pushing sleeve 242, and further pushes the battery cell to move. The battery cell pushes the glue pushing sleeve 242 to move away from the first glue pressing driving device 23 until the end face of the battery cell abuts against the glue pushing sleeve 242 and the pressing head 241 at the same time. At this time, the pressing head 241 and the glue pushing sleeve 242 jointly form a glue pressing surface abutting against the end face of the battery cell, and the part of the adhesive paper protruding from the end face of the battery cell is completely pressed against the end face of the battery cell by the glue pressing surface to complete the glue pressing. In the glue pressing process, the connecting piece forms a avoidance with the pressing head 241 and the glue pushing sleeve 242 to avoid damage to the connecting piece.

[0112] Furthermore, the pressing head 241 is made of an elastic material, specifically one or more of silicone, thermoplastic polyurethane, polycarbonate or high molecular polymer. This configuration can prevent the battery core from being scratched and deforming during the gluing process, thereby improving the gluing effect.

[0113] In one embodiment of the present invention, the rubber push sleeve 242 includes a sleeve body 2421 and a plurality of glue pressing ribs 2422 arranged at one end of the sleeve body 2421, and the plurality of glue pressing ribs 2422 are arranged at intervals along the circumference of the sleeve body 2421; the pressure head 241 is provided with a plurality of glue pressing holes 2411 arranged in the circumference; and the plurality of glue pressing ribs 2422 are movable in correspondence with the plurality of glue pressing holes 2411. With such arrangement, when the battery cell reaches the corresponding position of the battery cell glue pressing device 24, the first glue pressing driving device 23 first pushes the battery cell until the end face of the battery cell abuts against the glue pressing ribs 2422, and further pushes the battery cell to move, and the battery cell pushes the rubber push sleeve 242 to move away from the first glue pressing driving device 23 until the end face of the battery cell abuts against the glue pressing ribs 2422 and the pressure head 241 at the same time, and at this time, the pressure head 241 and the glue pressing ribs 2422 jointly form a glue pressing surface abutting against the end face of the battery cell.

[0114] In one embodiment of the present invention, the end surface of the glue pressing rib 2422 facing away from the sleeve body 2421 includes a guide surface 2422A and a first glue pressing plane 2422B; the guide surface 2422A is used to guide the incoming battery cell; the first glue pressing plane 2422B is used to abut against the end surface of the battery cell. In this way, when the first glue pressing driving device 23 pushes the battery cell until the end surface of the battery cell abuts against the rubber pushing sleeve 242, the first glue pressing driving device 23 pushes the battery cell and the adhesive paper to move along the guide surface 2422A first so that the battery cell faces the first glue pressing plane 2422B, 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 2422A, thereby pushing the battery cell to abut against the first glue pressing plane 2422B, and further pushing the battery cell and the rubber pushing sleeve 242 to move until the battery cell abuts against the pressure head 241 and the first glue pressing plane 2422B, and the glue pressing is completed.

[0115] Specifically, the guide surface 2422A is inclined, and the inclination direction is from the outer side of the rubber pushing sleeve 242 toward the inner side thereof in a direction close to the rubber pressing pushing structure, and the first rubber pressing plane 2422B extends radially.

[0116] Furthermore, at least a portion of the guide surface 2422A is arranged in an arc shape, and the arc curves toward the outer side of the rubber pushing sleeve 242 .

[0117] It should be noted that when different battery cell pressing devices 22 press the connecting piece on the battery cell collector plate, the connecting piece has different pressing positions, one of which is the position where the connecting piece extends along the axial direction of the battery cell, and the other is the position where the connecting piece extends along the radial direction of the battery cell. For the pressing positions corresponding to different battery cell pressing devices 22, the battery cell glue pressing device 24 is correspondingly set to different structures. If the battery cell pressing device 22 presses the connecting piece to a position extending along the radial direction of the battery cell, the side of the pressure head 241 close to the first glue pressing drive device 23 is set to a straight end face, and a plurality of glue pressing holes 2411 are opened on the end face, so that avoidance can be formed.

[0118] In one embodiment of the present invention, the battery cell pressing device 22 presses the connecting sheet to a position extending along the axial direction of the battery cell. Figure 6 and Figure 8 The battery cell glue pressing device 24 also includes a mounting seat 243, a centering pressure head 244 and an elastic member 245; the centering pressure head 244 is movably mounted on the mounting seat 243 along the second direction through a linear bearing 2442, and the centering pressure head 244 abuts against one end of the sleeve body 2421 away from the glue pressing rib 2422. The centering pressure head 244 forms an avoidance cavity 2441, and the connecting piece on the battery cell current collecting disk extends into the avoidance cavity 2441 through the pressure head 241 and the rubber pushing sleeve 242; the elastic member 245 (the figure shows the movable stroke of the elastic member 245) is arranged between the mounting seat 243 and the centering pressure head 244, and is used to drive the pushing member to abut against the rubber pushing sleeve 242. With such arrangement, during the process of the first glue pressing driving device 23 pushing the battery cell, the connecting piece on the battery cell current collecting disk extends into the avoidance cavity 2441 through the pressure head 241 and the rubber pushing sleeve 242, and the connecting piece forms an avoidance with the pressure head 241 and the rubber pushing sleeve 242. After the first glue pressing driving device 23 pushes the battery cell until the end face of the battery cell abuts against the rubber pushing sleeve 242 and the pressure head 241 at the same time to complete the glue pressing, the first glue pressing driving device 23 moves away from the battery cell glue pressing device 24, and the battery cell and the glue pressing sleeve return to the position before abutting against the battery cell under the action of the elastic member 245.

[0119] Specifically, a mounting hole extending along the second direction is provided on the mounting seat 243, the outer ring portion of the linear bearing 2442 is disposed in the mounting hole, and the centering pressure head 244 is provided with a mounting rod, which is connected to the inner ring portion of the linear bearing 2442. In this way, the centering pressure head 244 is movably disposed on the mounting seat 243 through the linear bearing 2442, so that the centering pressure head 244 can be stably moved along the second direction, and then aligned with the rubber push sleeve 242 for stable rubber pressing.

[0120] The elastic member 245 is a compression spring. An opening is provided on a side of the avoidance cavity 2441 facing the rubber push sleeve 242 to allow the connecting piece to extend into the avoidance cavity 2441 .

[0121] Specifically, a through hole 2412 is provided on the pressure head 241 for the connection piece on the current collecting plate of the power core to pass through.

[0122] Furthermore, a plurality of glue pressing holes 2411 are arranged along the circumference of the via hole 2412 .

[0123] Furthermore, an annular protrusion 24121 is convexly formed on the inner wall of the through hole 2412, and a plurality of glue pressing holes 2411 are formed on the annular protrusion 24121. In this way, the annular protrusion 24121 forms a second glue pressing plane 24121A. During glue pressing, the first glue pressing driving device 23 pushes the battery cell until the end face of the battery cell abuts against the first glue pressing plane 2422B and the second glue pressing plane 24121A at the same time.

[0124] Furthermore, a limiting groove 24122 is concavely formed on the inner side wall of the through hole 2412 , and correspondingly, a limiting rib 24211 is convexly formed on the outer peripheral side of the sleeve body 2421 to limit the range of movement of the rubber push sleeve 242 .

[0125] In one embodiment of the present invention, please refer to Fig. 9 and Fig.10 The pressing mechanism includes a pressing seat 221 and a pressing assembly. The pressing assembly is installed on the pressing seat 221 and is used to bend the connecting piece on the battery cell collector plate downward.

[0126] In one embodiment of the present invention, the tablet pressing assembly includes a plurality of tablet pressing rollers 222; the plurality of tablet pressing rollers 222 are rotatably mounted on the tablet pressing seat 221 around an axis extending in the second direction; the plurality of tablet pressing rollers 222 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 battery cell glue pressing device 24. With such an arrangement, when the battery cell transfer device 21 carries the battery cell to the corresponding position of the tablet pressing structure, the connecting sheet is located below the pressing roller, and along with the moving direction of the battery cell, the tablet pressing roller 222 is inclined downward, so that the connecting sheet is gradually pressed down to achieve tablet pressing.

[0127] Specifically, the pressing seat 221 is disposed on one side of the movable stroke of the battery cell transfer device 21 along the first direction, and performs glue pressing when the battery cell transfer device 21 carries the battery cell to move.

[0128] Specifically, a plurality of pressing rollers 222 close to the cell pressing device 22 are arranged horizontally to ensure that the connecting sheet does not twist after pressing, which is convenient for subsequent glue pressing operations.

[0129] In one embodiment of the present invention, the cell glue pressing unit 2 further includes a sheet lifting mechanism 25, which is disposed on the other side of the cell pressing device 22 and is used to lift the connecting sheet of the cell collector after glue pressing. In this way, the sheet is lifted after the glue pressing operation to restore the connecting sheet to the initial position.

[0130] In one embodiment of the present invention, the sheet lifting mechanism 25 includes a sheet lifting seat 251 and a sheet lifting assembly installed on the sheet lifting seat 251, and the sheet lifting assembly is used to bend the connecting piece on the battery cell collector plate upward; the sheet lifting assembly includes a plurality of sheet lifting rollers 252; the plurality of sheet lifting rollers 252 are rotatably installed on the sheet lifting seat 251 around an axis extending along the second direction; the plurality of sheet lifting rollers 252 are arranged along the first direction, and at least partially inclined, and the inclined direction is downwardly inclined toward the direction close to the battery cell glue pressing device 24. In this way, when the battery cell transfer device 21 carries the battery cell to the corresponding position of the sheet lifting mechanism 25, the connecting piece is located above the pressing roller, and along with the moving direction of the battery cell, the pressing roller 222 is inclined upward, so that the connecting piece is gradually lifted for recovery.

[0131] Furthermore, the highest position of the lifting sheet assembly and the lowest position of the glue pressing assembly are at the same height. This arrangement enables the connecting sheet to be completely restored when the glue pressing assembly lifts the connecting sheet.

[0132] In one embodiment of the present invention, the cell glue pressing device 24 is movably arranged along the second direction; the cell glue pressing unit 2 further includes a second glue pressing driving mechanism 26 to drive the cell glue pressing device 24 to move. In this arrangement, when the first glue pressing driving mechanism 23 drives the pressed cell to move toward the cell glue pressing device 24, the second glue pressing driving mechanism 26 can synchronously drive the cell glue pressing device 24 to move toward the first glue pressing driving mechanism 23; after the cell glue pressing device 24 completes the glue pressing, the cell can be pushed back to the corresponding position with the cell glue pressing device 24, so that the cell transfer device 21 can transport the cell and perform the next operation.

[0133] Specifically, the second glue pressing driving mechanism 26 includes a second base 261 and a third driving cylinder 262. The battery cell glue pressing device 24 is movably arranged on the second base 261. The third driving cylinder 262 is used to drive the battery cell glue pressing device 24. The mounting base 243, the pressing base 221 and the lifting plate of the battery cell glue pressing device 24 are arranged on the second base 261.

[0134] In one embodiment of the present invention, the working process of the battery core glue laminating unit 2 is as follows:

[0135] In the first step, the battery cell transfer device 21 is located at the initial position, the battery cell to be glued is placed on the battery cell transfer device 21, and the battery cell transfer device 21 is controlled to move the battery cell to the corresponding position of the battery cell pressing device 22; then the battery cell transfer device 21 is controlled to drive the battery cell to slowly move toward the battery cell glue pressing device 24, and the connecting piece passes through a plurality of gradually decreasing pressing rollers 222 of the battery cell pressing device 22, and is gradually bent downward, until the battery cell passes through the battery cell pressing device 22, and the connecting piece is bent to the pressing position;

[0136] The second step is to control the battery cell transfer device 21 to move the battery cell to the corresponding position of the battery cell glue pressing device 24, and then control the first glue pressing driving device 23 to push the battery cell toward the battery cell glue pressing device 24. Under the push of the first glue pressing driving device 23, the battery cell and the adhesive paper move along the guide surface 2422A of the glue pressing rib 2422 until the end of the battery cell abuts against the first glue pressing plane 2422B, and the adhesive paper is pressed tightly on the end face of the battery cell. The battery cell moves further to abut against the second glue pressing plane 24121A. In this process, the connecting piece extends into the avoidance cavity 2441 through the pressure head 241 and the rubber pushing sleeve 242;

[0137] The third step is to control the second glue pressing driving mechanism 26 to drive the battery cell glue pressing device 24 to make the battery cell return to the corresponding position of the battery cell glue pressing device 24 .

[0138] The fourth step is to control the battery cell transfer device 21 to move the battery cell to the corresponding position of the lifting mechanism 25; and then control the battery cell transfer device 21 to drive the battery cell to slowly move away from the battery cell glue pressing device 24, and the connecting piece passes through the battery cell pressing device 22 with multiple pressing rollers 222 that gradually rise in height, and is gradually bent upward until the battery cell passes through the battery cell pressing device 22 and the connecting piece is restored.

[0139] The present invention further provides a battery core gluing method, which is based on a battery core gluing unit 2. The specific structure of the battery core gluing unit 2 refers to the above embodiment. The battery core gluing method includes the following steps:

[0140] S1, controlling the battery cell transfer device 21 to transfer the battery cell to the battery cell pressing device 22 to press the connecting piece on the battery cell collector plate to adjust the connecting piece to the middle of the battery cell;

[0141] S2, controlling the battery cell transfer device 21 to move the battery cell to the battery cell glue pressing device 24, and controlling the first glue pressing driving device 23 to drag the battery cell toward the battery cell glue pressing device 24 to perform glue pressing on the end surface of the battery cell;

[0142] S3, controlling the battery cell transfer device 21 to transfer the battery cell to the sheet lifting mechanism 25, so as to lift the connecting sheet on the battery cell collector plate, so as to move the connecting sheet back to the initial position.

[0143] The technical solution of the present invention first controls the battery cell pressing device 22 to press the connecting piece on the battery cell collecting disk before controlling the gluing, and then controls the battery cell transferring device 21 to transfer the pressed battery cell to the corresponding position of the battery cell gluing device 24 for gluing, and finally controls the battery cell transferring device 21 to lift the connecting piece on the battery cell collecting disk to restore it, thereby achieving a good gluing effect, avoiding damage to the connecting piece without affecting subsequent processes, improving the yield of the product, and reducing costs and increasing efficiency.

[0144] On the other hand, see Fig.11 The shell cleaning unit 4 includes a brush cleaning device 41, a battery wiping device 42 and a laser cleaning device 43. The brush cleaning device 41 is used to brush away impurities on the end cover of the battery; the battery wiping device 42 includes a cleaning cloth supply device, a cleaning positioning device and a cleaning material transfer device. The cleaning cloth supply device is used to provide a molded cloth of a preset length, and the cleaning positioning device is used to position the battery. The cleaning material transfer device includes a cleaning material transfer structure and a cleaning material transfer structure. The cleaning material transfer structure has a movable stroke between the cleaning cloth supply device and the cleaning material transfer structure, which is used to transfer the molded cloth to the cleaning material transfer structure. The cleaning material transfer structure has a movable stroke between the cleaning material transfer structure and the cleaning positioning device, which is used to pick up the molded cloth on the cleaning material transfer structure and wipe the battery's injection hole at the cleaning positioning device. The laser cleaning device 43 is used to clean the battery's injection hole, and at the same time, the battery's end surface in the circumferential direction of the injection hole is roughened.

[0145] In the technical solution of the present invention, the battery to be brushed is first transported to the brush cleaning device 41, which can clean the battery once to brush off the impurities on the end cover of the battery to obtain the battery to be wiped, and then the battery to be wiped is transported to the battery wiping device 42, at which time the cleaning cloth supply device can provide a preset length of molded cloth, and at the same time, the cleaning positioning device can position the battery to be wiped at the cleaning positioning device, and finally the molded cloth is transported to the end of the battery with wiping through the cleaning material transfer device for wiping, so as to realize the automatic wiping of the secondary cleaning and obtain the battery to be cleaned, and finally, the battery to be cleaned is transported to the laser cleaning device 43, and the laser cleaning device 43 cleans the injection hole on the end cover of the battery to be cleaned by laser, and roughens the part of the end face on the circumference of the injection hole to complete the three cleaning work. In this way, the battery wiping device 42 improves the wiping quality and wiping efficiency, and through the three-level cleaning, the cleaning quality of the battery by the lithium battery injection hole cleaning device 1000 can be further improved.

[0146] In one embodiment of the present invention, see Fig.12The brush cleaning device 41 includes a cleaning clamping structure 411 and a brush structure 412. The cleaning clamping structure 411 includes two clamping parts spaced apart in the horizontal direction, at least one of which is a movable clamping part, which is movably arranged in the horizontal direction so that the two clamping parts can clamp the battery. The brush structure 412 is movably arranged in the vertical direction and can rotate along the axis extending in the vertical direction. The brush structure 412 is used to brush away impurities on the end cover of the battery. In this way, when the battery to be brushed moves to the brush cleaning device 41, the two clamping parts of the cleaning clamping structure 411 can move close to each other and clamp the battery to be brushed together to locate the position of the battery to be brushed. Then, the brush structure 412 moves downward to abut the battery to be brushed, and rotates along the axis extending in the vertical direction after abutment, so that the bristles of the brush structure 412 can rotate relative to the battery to be brushed, thereby brushing away impurities on the end cover of the battery to be brushed.

[0147] It can be understood that in the process of the brush structure 412 brushing off impurities on the end cover of the battery to be brushed off, the impurities brushed off by the brush structure 412 will adhere to other positions of the battery or other processing devices, so as to affect the subsequent processing of the battery and the normal progress of other processing devices. Therefore, it is necessary to collect the impurities brushed off by the brush structure 412. In a further embodiment of the present invention, the brush cleaning device 41 also includes a brush dust suction mechanism, and the brush dust suction structure is arranged on the brush structure 412, so as to absorb the impurities brushed off by the brush structure 412, so as to further improve the cleaning effect of the brush cleaning device 41.

[0148] It should be noted that the present invention does not limit the specific structural form of the brush dust suction structure. In one embodiment of the present invention, the brush cleaning device 41 can be configured as a dust hood 4121 and an air suction unit 4122. The dust hood 4121 is provided on the brush structure 412 to cover the end cap of the battery. The air suction unit 4122 is provided on the dust hood 4121 and is connected to the inside of the dust hood 4121. The air suction unit 4122 is used to absorb impurities brushed off by the brush structure 412. When the brush structure 412 brushes off impurities on the end cap of the battery to be brushed off, the dust hood 4121 can gather the impurities brushed off by the brush structure 412 in the dust hood 4121 to prevent the impurities from being scattered. At the same time, the air suction unit 4122 starts to work and can absorb the impurities in the dust hood 4121, thereby collecting all the impurities brushed off by the brush structure 412 to ensure the cleaning effect of the brush cleaning device 41.

[0149] In another embodiment of the present invention, the brush cleaning device 41 can also be configured as a dust hood 4121 and a dust removal part. The dust hood 4121 is used to cover the end cover of the battery, and the dust removal part is used to wipe the battery. With this configuration, when the brush structure 412 brushes off impurities, the dust hood 4121 can gather the impurities brushed off by the brush structure 412 in the dust hood 4121 to prevent the impurities from dispersing. After the brush structure 412 has completed brushing, the dust removal part is activated to wipe various parts of the battery, thereby removing the impurities brushed off by the brush structure 412 and attached to the battery. In this way, the cleaning effect of the brush cleaning device 41 can also be guaranteed.

[0150] Furthermore, in the present invention, a cleaning cloth supply device, a cleaning positioning device and a cleaning material transfer device are arranged at intervals along a straight line. The cleaning cloth supply device cuts the cloth and provides molded cloth. The cleaning material transfer structure of the cleaning material transfer device transfers the molded cloth to the material transfer structure. The material transfer structure of the cleaning material transfer device transports the molded cloth to the end of the battery to wipe the injection hole. After wiping is completed, the cleaning material transfer device of the cleaning material transfer device transports the waste cloth to the collecting hopper to collect the waste cloth, thereby realizing the automation of the entire process from cutting to recycling of the cloth, greatly improving production efficiency.

[0151] In one embodiment of the present invention, in order to enable the cleaning cloth supply device to provide a molded cloth of a preset length, the cleaning cloth supply device includes: a cloth supply seat, a cloth supply reel, a cloth feeding structure and a cutting structure; the cloth supply seat is arranged on the machine base; the cloth supply reel is arranged on the cloth supply seat for placing the cloth roll; the cloth feeding structure is arranged on the cloth supply seat for further transferring the cloth on the cloth supply reel; the cutting structure is arranged on the cloth supply seat for cutting the cloth to form a molded cloth.

[0152] The technical solution of the present invention is to place the cloth roll on the cloth supply reel, use the cloth feeding structure to further transfer the cloth on the cloth supply reel, and then control the cutting structure to cut the cloth to form a shaped cloth of appropriate size.

[0153] As an implementation manner of the cloth supply seat, the cloth supply seat is provided with a limiting groove capable of accommodating cloth, and the limiting groove is extended in the left and right directions to limit the moving direction of the cloth.

[0154] Furthermore, as an implementation of the cloth feeding structure, in order to further transfer the cloth on the cloth supply reel, the cloth feeding structure includes a cloth feeding roller structure and a clamping roller driving motor; the cloth feeding roller structure includes an active roller and a driven roller arranged on the cloth supply seat, and the active roller and the driven roller are respectively arranged on both sides of the cloth to clamp the cloth; the clamping roller driving motor is arranged on the cloth supply seat and is connected to the active roller. The active roller and the driven roller of the cloth feeding roller structure press the cloth from both sides of the cloth, and then rotate under the drive of the clamping roller driving motor, driving the cloth to extend from one side of the cloth feeding roller structure, and then further transferring the cloth. When the cloth feeding roller structure transfers the cloth to the positioning mechanism, the cloth has an active end extending out of the cloth feeding roller structure, providing conditions for cutting.

[0155] Furthermore, in order to improve the conveying efficiency of the cloth, a plurality of anti-skid convex strips are provided on the outer side wall of the active roller and / or the driven roller, and the plurality of anti-skid convex strips are arranged in a staggered manner. The anti-skid convex strips can reduce the slippage of the cloth during conveying and improve the conveying efficiency.

[0156] When the cloth on the cloth supply reel is exhausted, if the battery wiping device 42 is still running as a whole, the device will run idle and leak, which will greatly affect production efficiency. As an implementation of the cloth feeding structure, a cloth supply sensor is provided on the cloth supply seat to detect the cloth on the cloth supply reel, and a control center and an alarm device are provided. When the cloth supply sensor detects that the cloth on the cloth supply reel is about to run out, a signal is sent to the control center, and the control center controls the alarm device to remind the staff; when the cloth supply sensor detects that the cloth on the cloth supply reel is used up, a signal is sent to the control center, and the control center controls the battery wiping device 42 to shut down as a whole.

[0157] As an implementation of the cloth feeding structure, the cloth feeding structure also includes a cloth pressing roller arranged on the cloth supply seat; the limiting groove is provided with a matching groove corresponding to the cloth pressing roller to accommodate the cloth pressing roller. The cloth pressing roller presses the cloth down into the matching groove but restricts the movement of the cloth, and only tensions the cloth to prevent the wrinkles of the cloth from affecting the subsequent cutting.

[0158] As an implementation mode of the cloth feeding structure, the cloth feeding structure further includes a plurality of guide rollers arranged on the cloth supply seat, and the plurality of guide rollers are arranged on the cloth supply seat at intervals in the up and down directions to tension the cloth to prevent the cloth from wrinkling.

[0159] As an implementation of the cloth feeding structure, the cloth feeding reel, the cloth feeding structure and the cutting structure are correspondingly arranged as a cloth feeding group, two cloth feeding groups are arranged, and the two cloth feeding groups are arranged on both sides of the cloth feeding seat respectively. The arrangement of the cloth feeding group can realize the simultaneous provision of multiple pieces of formed cloth on a single cloth feeding seat.

[0160] As an implementation of the cutting structure, in order to enable the cutting structure to cut the cloth, the cutting structure includes a cutting knife and a cutting drive device; the cutting knife is movably installed on the cloth supply seat along the front and back sides to cut the cloth; the cutting drive device is arranged on the cloth supply seat and is driven and connected to the cutting knife. When the cloth is transferred to the positioning mechanism, the cutting knife cuts the cloth under the drive of the cutting drive device to form a formed cloth.

[0161] Specifically, the cutting drive device is a cutting cylinder, which is used to drive the cutting knife to move back and forth for cutting.

[0162] As an implementation method of the cutting knife, the cutting knife is arranged on one side of the cloth, and the blade of the cutting knife is perpendicular to the side edge of the cloth. The cutting knife moves forward and backward under the action of the cutting cylinder to cut the cloth sideways. When cutting sideways, one side of the cloth makes point contact with the blade of the cutting knife, and the cutting effect is better.

[0163] Furthermore, in order to keep the cloth stable when cutting, the cutting structure also includes two cutting pressure heads movably mounted on the cloth supply seat in the up-down direction, and the two cutting pressure heads are arranged at intervals on both sides of the cutting knife. When the cloth is transported to the positioning mechanism, the cutting pressure heads move downward to press the cloth, so that the cloth on both sides of the cutting knife is fixed to improve the cutting effect.

[0164] Specifically, a pressure head cylinder is arranged on the cloth supply seat to drive the cutting pressure head to press and hold the cloth.

[0165] The cloth supply seat is provided with a pressing platform corresponding to the pressing head, and the pressing platform is close to one side of the movement path of the cleaning and material transfer structure. When the pressing head is lifted, the formed cloth falls on the top of the cleaning and material transfer structure.

[0166] Preferably, the cleaning and material transfer structure is provided with a material transfer seat movably mounted on the machine base, and the cutting press head is arranged above the positioning mechanism when the material transfer seat moves to directly press the cloth on the material transfer seat.

[0167] In one embodiment of the present invention, in order to improve the wiping effect, a nozzle is provided on the cloth supply seat to spray a wiping agent onto the cloth at the cloth supply mechanism.

[0168] The technical solution of the present invention is to arrange a nozzle on the cloth supply mechanism to spray the wiping agent onto the cloth, so as to improve the wiping effect of the battery.

[0169] Preferably, the spray head is arranged on a side of the cutting head close to the positioning mechanism so that the wiping agent is sprayed on the formed fabric.

[0170] In one embodiment of the present invention, the cleaning material transfer structure includes: a material transfer seat, a supporting platform, an elastic member and a material transfer driving device; the material transfer seat is movably installed on the machine base along the front-back direction and the left-right direction, and the material transfer seat is provided with a supporting groove; the supporting platform is movably installed in the supporting groove along the up-down direction to carry the formed fabric; the elastic member is provided between the material transfer seat and the supporting platform; the material transfer driving device is driven and connected to the material transfer seat to drive the material transfer seat to move.

[0171] The technical solution of the present invention drives the material transfer seat to move forward and backward and left and right between the cloth supply mechanism and the transfer mechanism through the material transfer driving device, so as to transfer the formed cloth to the transfer mechanism.

[0172] The working process of the cleaning material transfer structure and the cutting structure is as follows: when the cloth feeding structure transfers the cloth to the cloth supply mechanism, the material transfer drive device drives the material transfer seat to the bottom of the cutting head; then the cutting head is pressed down to press the cloth tightly on the supporting table; then the cutting cylinder drives the cutting knife to cut the cloth; after cutting is completed, the cutting head rises, and at this time, the formed cloth is located on the supporting table.

[0173] Specifically, the elastic member is a spring structure, so that the supporting platform can be movably installed on the material transfer seat in the up-and-down direction.

[0174] Specifically, the material transfer drive device includes an adjusting cylinder and a material transfer cylinder. The adjusting cylinder is fixedly mounted on the machine base and has a movable slider in the forward and backward directions. The material transfer cylinder is fixedly mounted on the movable slider. The material transfer cylinder has a mounting slider in the left and right directions. The mounting slider has a movable stroke from the cloth feeding mechanism to the material transfer structure. The material transfer seat is fixedly mounted on the mounting slider and can move in the forward and backward directions and the left and right directions.

[0175] As an embodiment of the cleaning and transferring structure, the cleaning and transferring structure further comprises a transfer clamping claw movably mounted on the transfer seat in the up-down direction, for clamping the formed fabric on the support platform. When the cleaning and transferring structure transfers the formed fabric to the material transfer structure, the formed fabric is fixed.

[0176] Specifically, a material pressing cylinder is also installed on the mounting slide block to drive the material transfer clamping claw to move up and down.

[0177] In one embodiment of the present invention, the cleaning material transfer structure includes: a material transfer seat, a supporting claw structure, a material transfer pressure head and a material transfer driving device; the material transfer seat is movably installed on the machine base along the horizontal direction and the vertical direction; the supporting claw structure includes two material transfer supporting claws movably installed on the material transfer seat along the left and right directions, for supporting the formed fabric; the material transfer pressure head is arranged on the material transfer seat and is located between the two material transfer supporting claws; the material transfer driving device drives the material transfer supporting claws to drive the material transfer supporting claws to move.

[0178] The technical solution of the present invention is that the material transfer seat moves horizontally and vertically on the machine base, driving the material transfer claw to move between the material transfer structure and the positioning mechanism, so as to transport the formed cloth to the end of the battery for wiping.

[0179] The working process of the cleaning material transfer structure and the cleaning material transfer structure is as follows: when the cleaning material transfer structure transfers the formed fabric to the material transfer structure, the formed fabric is located on the supporting seat, and the material transfer claws of the cleaning material transfer structure release the fabric; then the material transfer seat moves to a position where the material transfer claws are located directly above the material transfer seat; and then the moving drive device drives the material transfer claws to move downward; when the lower end surface of the material transfer pressure head contacts the supporting platform, the moving drive device continues to drive the material transfer claws downward until the elastic part is compressed, at which time the supporting surface of the supporting platform is pressed down by the material transfer pressure head to below the top surface of the supporting groove, and the formed fabric forms a shape with convex sides and concave in the center; then, the material transfer claws approach each other to lift the convexities on both sides of the formed fabric to support the fabric.

[0180] Specifically, the mobile driving device includes a left and right slide and an up and down slide. The left and right slide is arranged on the machine base, and a mounting plate is provided at the output end of the left and right slide after passing through the feeding mechanism and the positioning mechanism. The up and down slide is fixedly connected to the mounting plate, and a material moving seat is installed at the output end of the up and down slide, so that the material moving seat is movably installed on the machine base in the horizontal direction and the up and down direction.

[0181] As an implementation of the cleaning and material transfer structure, a first avoidance groove is provided on the side wall of the bearing groove to avoid the material transfer claws of the cleaning and material transfer structure.

[0182] As an implementation of the cleaning material transfer structure, the bearing groove is provided with a first avoidance groove, and the material transfer clamping claw is provided with a second avoidance groove. The second avoidance groove is arranged corresponding to the first avoidance groove to avoid the material transfer claw of the cleaning material transfer structure.

[0183] In one embodiment of the present invention, the material transfer claw has an upward supporting surface, which is located above the lower end surface of the material transfer pressure head, so that the formed fabric can be pressed between the material transfer head and the material transfer claw.

[0184] The technical solution of the present invention is to arrange the supporting surface of the material transfer claw above the lower end surface of the material transfer pressure head, so that when the material transfer claw supports the molded fabric, the molded fabric maintains a state with convex sides and concave in the center, so that the molded fabric can be pressed between the material transfer pressure head and the material transfer claw during the material transfer process.

[0185] In one embodiment of the present invention, the claw structure wipes the end of the battery in a rotating manner. The material transfer seat includes: a material transfer body and a material transfer rotating seat; the material transfer body is movably mounted on the machine base in the horizontal direction and in the vertical direction; the material transfer rotating seat is rotatably mounted on the material transfer body around an axis extending in the vertical direction; wherein the claw structure and the material transfer pressure head are arranged on the material transfer rotating seat.

[0186] The technical solution of the present invention transfers the formed fabric to the end of the battery through the supporting claw structure and the material transferring press head, and presses the formed fabric on the end of the battery through the material transferring press head, and drives the supporting claw structure and the material transferring press head to rotate at the end of the battery through the rotation of the material transferring rotating seat, so that the formed fabric held by the supporting claw structure and the material transferring press head rotates relative to the end of the battery, thereby wiping the battery.

[0187] The material moving body is provided with a rotating motor, and a material moving rotating seat is arranged at the output end of the rotating motor.

[0188] In one embodiment of the present invention, a receiving hole is recessed in the middle of the material transfer pressure head.

[0189] The technical solution of the present invention uses the receiving hole to ensure that when the molded cloth is rotating and wiping, the wiping agent sprayed on the molded cloth is collected in the receiving hole during rotation, so that the molded cloth will not be dried under the action of centrifugal force.

[0190] Specifically, a radial groove is also provided on the positioning protrusion to connect the accommodating hole to the edge of the material transfer pressure head, thereby providing a path for the collection of the wiping agent.

[0191] Of course, it is understandable that the present invention does not limit the specific material of the wiper. In one embodiment of the present invention, the material of the wiper can be alcohol; in another embodiment of the present invention, the material of the wiper can also be acetone; in other embodiments of the present invention, the material of the wiper can also be other liquids with cleaning ability. Specifically, it can be selected according to the needs.

[0192] As an embodiment of the material transfer pressing head, a positioning protrusion is convexly provided at the lower end of the material transfer pressing head for positioning in the matching groove of the battery.

[0193] As an embodiment of the cleaning positioning device, the cleaning positioning device includes a positioning and conveying structure and a positioning and clamping structure. The positioning and conveying structure is arranged on the machine base for conveying the battery to the positioning mechanism; the positioning and clamping structure is arranged on the machine base for clamping and fixing the battery at the positioning mechanism.

[0194] As an implementation manner of the positioning and conveying structure, the positioning and conveying structure includes a positioning cylinder movably installed horizontally on the base, and the positioning cylinder is used to support and push the battery.

[0195] Specifically, a conveying cylinder is arranged on the machine base to drive the positioning cylinder to move horizontally.

[0196] As an implementation of the positioning and conveying structure, the positioning and clamping structure includes two clamping plates, which are movably installed horizontally on both sides of the positioning tube to clamp the battery.

[0197] Specifically, two clamping cylinders are arranged on the machine base to respectively drive the two clamping plates to move horizontally.

[0198] The working process of the cleaning material transfer device and the cleaning positioning device is as follows: after the positioning conveying structure transports the battery to the positioning mechanism, the positioning clamping structure clamps the battery at the positioning mechanism; the claw structure of the cleaning material transfer structure transfers and presses the cut cloth to the liquid injection hole of the battery for rotating wiping.

[0199] In one embodiment of the present invention, the waste cloth collecting device 44 includes: a collecting hopper, a connecting pipe and a collecting box; the collecting hopper is arranged at the waste cloth collecting mechanism to collect the waste cloth after wiping; the connecting pipe inlet is connected to the collecting hopper; the collecting box is arranged at the connecting pipe outlet.

[0200] The working process of the cleaning and material transfer device and the waste cloth collecting device 44 is as follows: after the battery is wiped, the claw structure of the cleaning and material transfer device transfers the waste cloth to the collecting hopper, and the claw structure enters from the material port of the collecting hopper. After the claw structure is released, the waste cloth enters the collecting box along the hopper and the connecting pipe, so as to realize the automation of the entire process from cutting to recycling of the cloth, thereby greatly improving production efficiency.

[0201] As an implementation method of the collecting hopper, the collecting hopper is provided with an air outlet for blowing air to the material opening of the collecting hopper, so as to prevent the waste cloth from being unable to be separated from the claw structure, thereby increasing the recycling speed.

[0202] Furthermore, a shielding member is provided at the material opening of the collecting hopper to prevent the waste cloth from being blown out of the material opening of the hopper when the air outlet blows air toward the material opening of the collecting hopper.

[0203] Optionally, the shielding member is a brush to isolate the hopper while allowing the claw structure to freely enter and exit the material opening of the hopper.

[0204] Likewise, see Fig.13 When the laser cleaning device cleans the battery, it is also necessary to remove dust from the battery to be cleaned. In one embodiment of the present invention, the laser cleaning device 43 includes a laser dust suction unit 431. The laser dust suction unit 431 is used to absorb impurities generated by laser cleaning when the laser cleaning device 43 laser cleans the battery, so as to further ensure the cleanliness of the cleaning.

[0205] It should be noted that during the battery transportation process, there are unqualified batteries among the multiple batteries being transported. For unqualified batteries, even after three-level cleaning, the sealing nails cannot be welded. Therefore, in order to avoid cleaning unqualified batteries and thus affecting the working efficiency of the cleaning device, please refer to Fig.14In one embodiment of the present invention, it also includes a battery sorting mechanism 44 disposed on the side of the brush cleaning device 41 away from the battery wiping device 42. The battery sorting mechanism 44 includes a cache mechanism 441, a code scanning mechanism 442 and a rejection mechanism 443. The cache mechanism 441 is used to cache multiple batteries. The code scanning mechanism 442 is disposed above the cache mechanism 441 to scan the batteries on the cache mechanism 441 to detect whether the batteries are qualified. The rejection mechanism 443 includes a push rod movably arranged in the horizontal direction. The push rod is used to push the unqualified batteries detected by the code scanning mechanism 442 away from the cache mechanism 441 and discharge them as NG. With such arrangement, when the batteries are conveyed to the battery sorting mechanism 44, first, the cache mechanism 441 caches a plurality of batteries in sequence, and in the process of the cache mechanism 441 caching the batteries, at this time, the scanning mechanism 442 will scan the plurality of batteries cached in the cache mechanism 441 to detect whether the batteries are qualified, and the qualified batteries can be further conveyed to the brush cleaning device 41 for brush cleaning, and for the unqualified batteries, the push rod of the rejection structure can move toward the unqualified batteries to push the unqualified batteries away from the cache mechanism 441 and discharge them as NG, thereby avoiding the cleaning device from cleaning the unqualified batteries and ensuring the lithium cleaning efficiency.

[0206] In one embodiment of the present invention, the cache mechanism 441 can be configured as a rotating table arranged to rotate in the up and down directions, and the rotating table has a plurality of cache positions arranged at intervals along the circumferential direction, and each cache position can provide a battery cache. It can be understood that the rotating table is arranged on the battery conveying path, and at least one cache station of the rotating table is located on the battery input path, and at least one cache station is located on the battery output path. In this way, during the battery conveying process, the battery will move to a cache position of the rotating table, and the rotating table can drive the battery to rotate, and during the rotation process, the scanning mechanism 442 will detect whether the battery on the cache position is qualified. If the battery is qualified, when the rotating table drives the battery to rotate to the output path, the battery will leave the cache position to be conveyed to the next mechanism; if the battery is unqualified, when the rotating belt drives the battery to rotate to the output path, the push rod will abut and push the unqualified battery, so that the battery will be separated from the rotating table for NG unloading.

[0207] On the other hand, see Fig.15 The sealing nail welding unit 8 includes a sealing nail feeding portion movably arranged horizontally and vertically, and the sealing nail feeding portion is used to drive the sealing nail to be fed to the liquid injection hole of the battery.

[0208] Based on the above cylindrical battery cell production line, the present invention also provides a production process for cylindrical batteries, wherein the cylindrical batteries include a shell, a battery cell and a cap.

[0209] In the first embodiment provided by the present invention, the production process of the cylindrical battery includes the following steps:

[0210] S1, welding a first current collecting plate on the first pole of the battery cell;

[0211] S2, pressing the insulating glue on the battery cell protruding from the edge of the first pole onto the end surface of the first pole of the battery cell;

[0212] S3, welding a second current collecting plate on the second pole of the battery cell;

[0213] S4, performing laser cleaning on the shell;

[0214] S5, pushing the battery cell into the shell, wherein the second pole faces the inner bottom wall of the shell;

[0215] S6, welding the second pole of the battery cell to the inner bottom wall of the shell through the current collecting plate;

[0216] S7, pre-spot welding the cover cap to one end of the opening of the shell;

[0217] S8. Weld a sealing nail to seal the injection hole of the battery cell.

[0218] In a second embodiment provided by the present invention, the production process of the cylindrical battery comprises the following steps:

[0219] S1, welding a first current collecting plate on the first pole of the battery cell;

[0220] S2, welding a second current collecting plate on the second pole of the battery cell;

[0221] S3, pressing the insulating glue on the battery cell protruding from the edge of the first pole onto the end surface of the first pole of the battery cell;

[0222] S4, performing laser cleaning on the shell;

[0223] S5, pushing the battery cell into the shell, wherein the second pole faces the inner bottom wall of the shell;

[0224] S6, welding the second pole of the battery cell to the inner bottom wall of the shell through the current collecting plate;

[0225] S7, pre-spot welding the cover cap to one end of the opening of the shell;

[0226] S8. Weld a sealing nail to seal the injection hole of the battery cell.

[0227] The present invention provides a production process of a cylindrical battery, wherein the battery cell comprises a first pole and a second pole which are arranged opposite to each other. During the production process, the battery cell first passes through the first current collecting plate welding unit along the conveying direction of production, and the current collecting plate is welded on the first pole. Then, the battery cell may first pass through the battery cell glue pressing unit to flatten the insulating glue on the edge of the first pole, or may first pass through the second current collecting plate welding unit to weld the current collecting plate on the second pole. After the welding of the current collecting plates at both ends and the flattening of the insulating glue are completed, the battery cell may then pass through the shell cleaning unit, and then pass through the battery cell shell entry unit to put the battery cell into the cleaned shell, and weld the battery cell and the shell when passing through the shell penetration welding unit, and finally pass through the cap welding unit and the sealing nail welding unit to weld the corresponding parts of the battery cell to complete the production of the battery cell. The entire production line includes the entire process of battery cell production, and there is no need for manual participation in the production steps. The production process is optimized, and the production efficiency can be effectively improved to ensure the production quality.

[0228] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A cylindrical battery cell production line, wherein the two opposite ends of the battery cell are respectively a first pole and a second pole, characterized in that: include: A first collector plate welding unit, a cell glue pressing unit, a second collector plate welding unit, a shell cleaning unit, a cell inserting unit, a shell penetration welding unit, a cap welding unit, and a sealing pin welding unit are sequentially arranged along the cell conveying direction; or, A first collector plate welding unit, a second collector plate welding unit, a cell glue pressing unit, a shell cleaning unit, a cell shell insertion unit, a shell penetration welding unit, a cap welding unit, and a sealing pin welding unit are sequentially arranged along the cell conveying direction; The first collector plate welding unit and the second collector plate welding unit both include a collector plate feeding mechanism and a collector plate welding mechanism. The collector plate welding mechanism of the first collector plate welding unit is used to weld the collector plate supplied by the collector plate feeding mechanism to the first pole, and the collector plate welding mechanism of the second collector plate welding unit is used to weld the collector plate supplied by the collector plate feeding mechanism to the second pole; A battery core glue pressing unit, used for pressing the insulating glue protruding from the edge of the first pole to the end surface of the first pole; A shell cleaning unit, used for laser processing of the shell; A battery cell insertion unit for pushing the battery cell into the housing, with the second pole facing the inner bottom wall of the housing; A shell penetration welding unit for welding the second pole to the inner bottom wall of the shell through the current collecting plate; A cap welding unit, used for pre-spot welding the cap to the opening end of the shell; The sealing pin welding unit comprises a cap cleaning mechanism and a sealing pin welding mechanism, wherein the cap cleaning mechanism is used for cleaning the end surface of the cap, and the sealing pin welding mechanism is used for sealingly welding the sealing pin to the injection hole of the cap.

2. The cylindrical battery cell production line according to claim 1, characterized in that: The collecting tray feeding mechanism comprises: The collecting plate conveyor line is used to convey the tray cups; The collecting plate feeding device comprises a collecting plate feeding seat, wherein the collecting plate feeding seat is used for the installation of the collecting plate clip; A current collecting plate positioning device, comprising a first current collecting plate positioning structure and a second current collecting plate positioning structure, wherein the first current collecting plate positioning structure is used to clamp the current collecting plate along a first horizontal direction, and the second current collecting plate positioning structure is used to adjust the current collecting plate clamped by the first positioning structure along a second horizontal direction; and The collecting tray moving device has a movable stroke between the collecting tray feeding device, the collecting tray positioning device and the collecting tray conveying line, and is used to transfer the collecting tray at the collecting tray feeding device to the collecting tray positioning device, or to transfer the collecting tray at the collecting tray positioning device to the supporting cup of the collecting tray conveying line.

3. The cylindrical battery cell production line according to claim 2, characterized in that: The collecting plate feeding mechanism further comprises a pressing line arranged on the collecting plate conveying line, which is used for pressing the collecting plate tightly into the supporting cup.

4. The cylindrical battery cell production line according to claim 1, characterized in that: The battery core glue pressing unit comprises: A battery cell transfer device, used for carrying the battery cell and moving it along a moving direction; A cell pressing device, used to press the connecting piece on the cell collector plate; A first glue pressing driving device is used to drive the pressed battery cell to move along a second direction; and A battery core glue pressing device, arranged on one side of the battery core pressing device along the first direction; Wherein, when the battery cell glue pressing device presses glue on the end surface of the battery cell coming from the second direction, the battery cell glue pressing device forms a glue pressing surface abutting against the end surface of the battery cell.

5. The cylindrical battery cell production line according to claim 4, characterized in that: The battery cell glue pressing unit further comprises a battery cell lifting device, which is arranged at the other side of the battery cell glue pressing device and is used to lift the connecting piece of the battery cell collector disk after glue pressing.

6. The cylindrical battery cell production line according to claim 1, characterized in that: The shell cleaning unit comprises: A brush cleaning device, used for brushing away impurities on the end cover of the battery; A battery wiping device, comprising a cleaning cloth supply device, a cleaning positioning device and a cleaning material transfer device, wherein the cleaning cloth supply device is used to provide a molded cloth of a preset length, the cleaning positioning device is used to position the battery, the cleaning material transfer device comprises a cleaning material transfer structure and a cleaning material transfer structure, the cleaning material transfer structure has a movable stroke between the cleaning cloth supply device and the cleaning material transfer structure, and is used to transfer the molded cloth to the cleaning material transfer structure, the cleaning material transfer structure has a movable stroke between the cleaning material transfer structure and the cleaning positioning device, and is used to pick up the molded cloth on the cleaning material transfer structure and wipe the liquid injection hole of the battery at the cleaning positioning device; and, The laser cleaning device is used to clean the liquid injection hole of the battery and to roughen part of the end surface of the battery in the axial direction of the liquid injection hole.

7. The cylindrical battery cell production line according to claim 6, characterized in that: The housing cleaning unit further comprises a waste cloth collecting device disposed between the battery wiping device and the laser cleaning device, the waste cloth collecting device comprising: A collection hopper for collecting waste cloth after wiping; a connecting pipe, the inlet of which is connected to the collecting hopper; and The collecting box is arranged at the outlet of the connecting pipe.

8. The cylindrical battery cell production line according to claim 1, characterized in that: The sealing nail welding unit comprises a sealing nail feeding portion movably arranged in a horizontal direction and in an up-and-down direction, and the sealing nail feeding portion is used for driving the sealing nail to be fed to the liquid injection hole of the battery.

9. A production process for a cylindrical battery, the cylindrical battery comprising a shell, a battery cell and a cap, characterized in that: Comprising a cylindrical battery cell production line according to any one of claims 1 to 8; The production process of the cylindrical battery comprises the following steps: S1, welding a first current collecting plate on the first pole of the battery cell; S2, pressing the insulating glue on the battery cell protruding from the edge of the first pole onto the end surface of the first pole of the battery cell; S3, welding a second current collecting plate on the second pole of the battery cell; S4, performing laser cleaning on the shell; S5, pushing the battery cell into the shell, wherein the second pole faces the inner bottom wall of the shell; S6, welding the second pole of the battery cell to the inner bottom wall of the shell through the current collecting plate; S7, pre-spot welding the cover cap to one end of the opening of the shell; S8. Weld a sealing nail to seal the injection hole of the battery cell.

10. A production process for a cylindrical battery, the cylindrical battery comprising a shell, a battery cell and a cap, characterized in that: Comprising a cylindrical battery cell production line according to any one of claims 1 to 8; The production process of the cylindrical battery comprises the following steps: S1, welding a first current collecting plate on the first pole of the battery cell; S2, welding a second current collecting plate on the second pole of the battery cell; S3, pressing the insulating glue on the battery cell protruding from the edge of the first pole onto the end surface of the first pole of the battery cell; S4, performing laser cleaning on the shell; S5, pushing the battery cell into the shell, wherein the second pole faces the inner bottom wall of the shell; S6, welding the second pole of the battery cell to the inner bottom wall of the shell through the current collecting plate; S7, pre-spot welding the cover cap to one end of the opening of the shell; S8. Weld a sealing nail to seal the injection hole of the battery cell.

Images