Automatic production line of battery current collector pole piece

Abstract

The invention discloses an automatic production line of a battery current collector pole piece, and relates to the technical field of battery production equipment.The automatic production line of the battery current collector pole piece comprises a rack, a welding mechanism, a feeding end and a discharging end, the rack is provided with a first conveying path used for conveying diaphragm materials, a second conveying path used for conveying A-face foil materials, a third conveying path used for conveying B-face foil materials and a fourth conveying path used for conveying finished products, and the first conveying path, the second conveying path and the third conveying path can be connected into the feeding end of the welding mechanism. The fourth conveying path can be connected into the discharging end of the welding mechanism. And the winding mechanism is installed on the rack and used for winding the finished product materials in the fourth conveying path. According to the technical scheme provided by the invention, ultrasonic welding of the coil diaphragm, the upper foil and the lower foil is realized, and the problem of low production efficiency of the current collector pole piece of the existing battery is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production equipment, and in particular to an automated production line for battery current collector pole pieces. Background Art

[0002] The battery collector electrode includes a diaphragm and a foil (AB side foil), wherein the foil is welded on the diaphragm. During the production of the existing diaphragm, the diaphragm is cut into a sheet structure, and then the foil is welded on the sheet structure diaphragm. This operation method is not convenient for the efficient production of battery collector electrodes. The main reason is that after welding a finished product, it is necessary to grab another sheet structure diaphragm for processing. Summary of the invention

[0003] The main purpose of the present invention is to provide an automated production line for battery current collector pole pieces, aiming to solve the problem of low production efficiency of existing battery current collector pole pieces.

[0004] To achieve the above-mentioned purpose, the present invention proposes an automatic production line for battery current collector pole pieces, comprising: frame, A welding mechanism is installed on the frame, the welding mechanism is provided with a feed end and a discharge end, the frame is provided with a first transport path for conveying diaphragm materials, a second transport path for conveying A-side foil materials, a third transport path for conveying B-side foil materials, and a fourth transport path for conveying finished products, the first transport path, the second transport path and the third transport path can be connected to the feed end of the welding mechanism, and the fourth transport path can be connected to the discharge end of the welding mechanism; A first unwinding mechanism, installed on the frame, for placing the diaphragm material and capable of conveying the diaphragm material into a first transport path; A second unwinding mechanism, installed on the frame, for placing the A-side foil material, and capable of conveying the A-side foil material into the second transport path; A third unwinding mechanism, installed on the frame, for placing the B-side foil material, and capable of conveying the B-side foil material into a third transport path; and The winding mechanism is installed on the frame and is used for winding the finished product materials in the fourth transport path.

[0005] In one embodiment, a first belt splicing assembly is provided in the first transport path, and the first belt splicing assembly is used to splice two sections of the diaphragm material. The first belt splicing assembly is arranged close to the first unwinding mechanism and is located above the first unwinding mechanism. The first unwinding mechanism, the second unwinding mechanism and the third unwinding mechanism are arranged on one side of the welding mechanism, the winding mechanism is arranged on the other side of the welding mechanism, and the second unwinding mechanism and the third unwinding mechanism are arranged between the first unwinding mechanism and the welding mechanism.

[0006] In one embodiment, a first tension assembly is further provided in the first transport path, the first tension assembly is provided downstream of the first belt connecting assembly and above the first belt connecting assembly, and the first tension assembly is provided on a side of the first unwinding mechanism away from the welding mechanism.

[0007] In one embodiment, a first driving component is further provided in the first transport path, the first driving component is provided downstream of the first tension component, and the first driving component can drive the diaphragm material to move along the first transport path; The first driving assembly is disposed between the first belt connecting assembly and the welding mechanism; The second unwinding mechanism and the third unwinding mechanism are arranged between the first driving assembly and the welding mechanism.

[0008] In one embodiment, a first deviation-correcting component is further provided in the first transport path, and the first deviation-correcting component is provided downstream of the first driving component and upstream of the welding mechanism; The first deviation-correcting assembly is arranged between the first driving assembly and the welding mechanism.

[0009] In one embodiment, a second deviation-correcting component is provided in the second transport path, the second deviation-correcting component is provided upstream of the welding mechanism, and the second deviation-correcting component is provided above the first transport path; And / or, a third deviation-correcting component is provided in the third transport path, the third deviation-correcting component is provided upstream of the welding mechanism, and the third deviation-correcting component is provided below the first transport path; And / or, the first unwinding mechanism and the rewinding mechanism have a deviation correction function.

[0010] In one embodiment, a welding and flattening component is provided in the fourth transport path, and the welding and flattening component is provided between the welding mechanism and the winding mechanism, and is provided close to the welding mechanism.

[0011] In one embodiment, a second drive component is provided in the fourth transport path, and the second drive component is provided downstream of the welding and flattening component, and is provided between the welding and flattening component and the winding mechanism, and is provided close to the welding and flattening component, and the second drive component can drive the finished material to move along the fourth transport path.

[0012] In one embodiment, a detection labeling component is provided in the fourth transport path, and the detection labeling component is used to detect the weld marks of the finished material; The detection labeling assembly is arranged downstream of the second driving assembly, the detection labeling assembly is arranged between the second driving assembly and the winding mechanism, and is located above the second driving assembly; A second belt splicing assembly is arranged in the fourth transport path. In this case, the second belt splicing assembly is arranged above the winding mechanism and downstream of the detection and labeling assembly.

[0013] In one embodiment, the frame includes a first mounting portion and a second mounting portion, the first mounting portion and the second mounting portion are spliced, and the first transport path, the second transport path, the third transport path, the first unwinding mechanism, the second unwinding mechanism, and the third unwinding mechanism are installed on the first mounting portion; The fourth transport path and the winding mechanism are installed on the second installation portion.

[0014] The technical solution of the present invention adopts the method of placing the diaphragm material in a rolled state on the first unwinding mechanism. At this time, the first unwinding mechanism can continuously input the diaphragm material in a rolled state into the first transportation path, so as to enter the welding mechanism. At this time, the continuous diaphragm material can be directly processed with the A-side foil material and the B-side foil material to form a finished material, thus replacing the process of welding the foil after the current collector electrode sheet is made, saving the time of grabbing the diaphragm material for processing multiple times, thereby solving the technical problems existing in the prior art. At the same time, this device can also be used for batteries with a winding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 A structural schematic diagram of an embodiment of an automated production line for battery current collector electrodes provided by the present invention; Figure 2 for Figure 1 Schematic diagram of the structure from another perspective.

[0017] Description of Figure Numbers: 100, frame; 110, first mounting portion; 120, second mounting portion; 200, welding mechanism; 210, feeding end; 220, discharging end; 300, first transport path; 310, first belt connection assembly; 320, first tension assembly; 330, first drive assembly; 340, first deviation correction assembly; 400, second transport path; 410, second deviation-correcting component; 600, fourth transport path; 610, welding and printing flattening component; 620, detection and labeling component; 621, detection module; 622, labeling module; 630, second belt connection component; 640, second driving component; 650, second tension component; 660, fourth deviation correction component; 700, first unwinding mechanism; 800, second unwinding mechanism; 900, third unwinding mechanism; 10. Rewinding mechanism; 20. Transport roller.

[0018] 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

[0019] 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.

[0020] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0021] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0022] The present invention is not limited to the welding of a battery current collector electrode sheet and two layers of foil, but can also be the welding of a battery current collector electrode sheet and a single layer of foil or a multi-layer foil.

[0023] The battery current collector electrode includes a diaphragm, an A-side foil and a B-side foil, wherein the foil is welded on the diaphragm. The existing process is to make the diaphragm into a sheet and then weld the foil on the sheet-like diaphragm. This operation method is not convenient for efficient production of battery current collector electrodes. The main reason is that after welding a finished product, another sheet-like diaphragm needs to be grabbed for processing, which requires many repeated actions and is extremely inefficient. The production speed of this invention is not less than 30 meters per minute, which greatly improves production efficiency.

[0024] The present invention provides an automated production line for battery current collector pole pieces.

[0025] See also Figure 1 In one embodiment of the present invention, the battery current collector electrode automatic production line comprises: Rack 100, The welding mechanism 200 is installed on the frame 100, and the welding mechanism 200 is provided with a feed end 210 and a discharge end 220. The frame 100 is provided with a first transport path 300 for conveying diaphragm materials, a second transport path 400 for conveying A-side foil materials, a third transport path (not shown) for conveying B-side foil materials, and a fourth transport path 600 for conveying finished products. The first transport path 300, the second transport path 400 and the third transport path can be connected to the feed end 210 of the welding mechanism 200, and the fourth transport path 600 can be connected to the discharge end 220 of the welding mechanism 200; it should be noted that the diaphragm material, the A-side foil material, and the B-side foil material enter the welding mechanism through the feed end 210 of the welding mechanism 200. 200, wherein the welding mechanism 200 is an ultrasonic welding device. Further, the ultrasonic welding device includes a welding head, a mounting frame, and a welding seat. In some embodiments, the welding head can be a roller welding welding head. Further, the welding head and the welding seat in the ultrasonic welding device can be close to or far away from each other, so that the distance between the welding head and the welding seat can be adjusted to ensure the pressure of the welding head during welding. Further, in some embodiments, the welding seat can move toward the welding head. Specifically, the welding seat is installed on the mounting seat by a first pressure-regulating cylinder. At this time, the first pressure-regulating cylinder can drive the welding seat to move toward or away from the welding head. When the welding seat is close to the welding head, the distance between the two is small, and the pressure of the welding head during welding will be relatively large. When the welding seat is far away from the welding head, the distance between the two is large, and the pressure of the welding head during welding will be relatively small.

[0026] The first unwinding mechanism 700 is installed on the frame 100 and is used for placing the diaphragm material. It can transport the diaphragm material into the first transport path 300. It should be noted that the diaphragm material is placed in the first unwinding mechanism 700 in a roll shape. At this time, the first unwinding mechanism 700 can transport the diaphragm material into the first transport path 300. Furthermore, in some embodiments, the first transport path 300 includes a plurality of transport rollers 20.

[0027] The second unwinding mechanism 800 is installed on the frame 100 and is used for placing the A-side foil material. It can transport the A-side foil material into the second transport path 400. It should be noted that the A-side foil material is placed in a roll in the second unwinding mechanism 800. At this time, the second unwinding mechanism 800 can transport the A-side foil material into the second transport path 400. Furthermore, in some embodiments, the second transport path 400 includes a plurality of transport rollers 20.

[0028] The third unwinding mechanism 900 is installed on the frame 100 and is used for placing the B-side foil material. It can transport the B-side foil material into the third transport path. It should be noted that the B-side foil material is placed in a roll on the third unwinding mechanism 900. At this time, the third unwinding mechanism 900 can transport the B-side foil material into the third transport path. Furthermore, in some embodiments, the third transport path includes multiple transport rollers 20.

[0029] The winding mechanism 10 is installed on the frame 100 and is used to wind up the finished materials in the fourth transport path 600. It can be understood that the diaphragm material, the A-side foil material, and the B-side foil material enter the welding mechanism 200 through the feed end 210 of the welding mechanism 200. At this time, the welding head of the welding mechanism 200 can weld the A-side foil material and the B-side foil material to the diaphragm material. When the A-side foil material and the B-side foil material are welded to the diaphragm material, a finished material can be formed. At this time, the finished material can enter the fourth transport path 600 through the discharge end 220 of the welding mechanism 200, and move along the fourth transport path 600 to the winding mechanism 10. Then the winding mechanism 10 continues to wind up and can continuously wind up the finished materials in the fourth path. It should be noted that in this embodiment, there is no need to cut the diaphragm material into sheets. The diaphragm material is in a rolled state and placed on the first unwinding mechanism 700. At this time, the first unwinding mechanism 700 can continuously input the diaphragm material in a rolled state to the first transport path 300, so as to enter the welding mechanism 200. At this time, the continuous diaphragm material can be directly processed with the A-side foil material and the B-side foil material to form a finished material. This replaces the process of welding the foil after the collector electrode is made, saving the time of repeatedly grabbing the diaphragm of the sheet structure for processing, thereby solving the technical problems existing in the prior art. At the same time, it should be noted that since the finished material is rolled up by the winding mechanism 10, the finished material after processing is also in a rolled state. Later users can cut out finished materials of different lengths according to different battery requirements to improve the applicability of the finished materials.

[0030] It should be noted that, in some embodiments, the first unwinding mechanism 700 includes an inflatable shaft and an unwinding roller, wherein the inflatable shaft in the first unwinding mechanism 700 is used for placing the diaphragm material, wherein the inflatable shaft in the first unwinding mechanism 700 can fix the rolled diaphragm material on the inflatable shaft after being inflated, and after the inflatable shaft in the first unwinding mechanism 700 is deflated, the diaphragm material can be removed from the inflatable shaft in the first unwinding mechanism 700, and further, the unwinding roller can swing around the inflatable shaft, wherein the inflatable shaft in the first unwinding mechanism 700 can be driven to rotate, thereby unwinding the diaphragm material. Furthermore, in some embodiments, in order to make the first unwinding mechanism 700 have a correction function, the pneumatic shaft and the unwinding roller in the first unwinding mechanism 700 can be installed on a slide. At this time, the slide can move back and forth along the axial direction of the pneumatic shaft in the first unwinding mechanism 700, thereby realizing the movement of the pneumatic shaft in the first unwinding mechanism 700. When the pneumatic shaft in the first unwinding mechanism 700 is active, it can adjust the unwinding direction of the diaphragm material, so as to achieve the purpose of correction.

[0031] Further, refer to Figure 1 , Figure 2In some embodiments, the winding mechanism 10 is similar to the first unwinding mechanism 700, wherein the winding mechanism 10 includes an air shaft and a rolling roller, the finished material is installed on the air shaft in the winding mechanism 10, and the rolling roller can press the finished material being wound, wherein the air shaft in the winding mechanism 10 can be driven to rotate, thereby rolling up the finished material. Furthermore, in order to make the winding mechanism 10 have a deviation correction function, the air shaft and the rolling roller in the winding mechanism 10 can be installed on another slide, and at this time, the other slide can reciprocate along the axial direction of the air shaft in the winding mechanism 10, so as to realize the movement of the air shaft in the winding mechanism 10, and the air shaft in the winding mechanism 10 can adjust the winding direction of the finished material when it moves, so as to achieve the purpose of deviation correction.

[0032] Further, in some embodiments, the first unwinding mechanism 700, the second unwinding mechanism 800, and the third unwinding mechanism 900 are arranged on one side of the welding mechanism 200, and the winding mechanism 10 is arranged on the other side of the welding mechanism 200, and the second unwinding mechanism 800 and the third unwinding mechanism 900 are arranged between the first unwinding mechanism 700 and the welding mechanism 200, wherein the second unwinding mechanism 800 and the third unwinding mechanism 900 are distributed up and down along the height direction of the frame 100, that is, at this time, the first unwinding mechanism 700, the welding mechanism 200, and the winding mechanism 10 are arranged along the length direction of the frame 100, at this time, the battery current collector electrode automatic production line can make better use of both horizontal space and vertical space, so that the structure of the battery current collector electrode automatic production line is relatively compact, which is convenient for placement in the factory.

[0033] In one embodiment, reference Figure 1, the battery current collector pole piece automatic production line can also be provided with a first connecting assembly 310, wherein the first connecting assembly 310 is provided in the first transport path 300, the first connecting assembly 310 is used to splice the two sections of the diaphragm material, the first connecting assembly 310 is provided near the first unwinding mechanism 700, and is located above the first unwinding mechanism 700. Further, when a diaphragm material is used up, when a new diaphragm material is replaced, in order to avoid the new diaphragm material from rerouting, the head end of the new diaphragm material can be connected to the tail end of the previous diaphragm material. At this time, when the tail end of the previous diaphragm material moves in the battery current collector pole piece automatic production line, it can drive the head end of the new diaphragm material to move, thereby avoiding the rerouting of the new diaphragm material, and further improving the production efficiency. Further, in some embodiments, the first connecting assembly 310 can use ultrasonic welding equipment or other fixing equipment to connect the head and tail of the two sections of diaphragm material. Furthermore, the first tape splicing assembly 310 is disposed above the first unwinding mechanism 700 , with the purpose of better utilizing the space in the height direction of the frame 100 , thereby making the structure of the frame 100 more compact.

[0034] In one embodiment, reference Figure 1 , a first tension component 320 is also provided in the first transport path 300, and the first tension component 320 is provided downstream of the first belt connecting component 310 and above the first belt connecting component 310, and the first tension component 320 is provided on the side of the first unwinding mechanism 700 away from the welding mechanism 200. It can be understood that the provision of the first tension component 320 helps to prevent the diaphragm material from being relaxed or over-stretched during the transmission process, and reduces the possibility of the diaphragm material being offset or broken. At the same time, the first tension component 320 can also make the diaphragm material more stable during transmission. The first tension component 320 is provided above the first belt connecting component 310, and at this time, the first tension component 320 can provide a The first tension assembly 320 is provided with an upward traction force, which can help the diaphragm material enter the subsequent process more smoothly, and can also avoid the friction that may be encountered in the horizontal direction, improve the moving efficiency of the diaphragm material, thereby improving the processing efficiency. At the same time, it is arranged above the first belt connecting assembly 310, and can also use the height space of the frame 100 to improve the space utilization rate. Further, the first tension assembly 320 is arranged on the side of the first unwinding mechanism 700 away from the welding mechanism 200. It should be noted that the space on the side of the first unwinding mechanism 700 away from the welding mechanism 200 is relatively open. At this time, when the maintenance personnel adjust or repair the first tension assembly 320, the relatively open space can facilitate the maintenance personnel to operate the first tension assembly 320. Further, in some embodiments, the first tension assembly 320 includes a tension swing rod, wherein the tension swing rod is installed on the frame 100.

[0035] In one embodiment, reference Figure 1 , the first transport path 300 is also provided with a first drive assembly 330, the first drive assembly 330 is arranged downstream of the first tension assembly 320, and the first drive assembly 330 can drive the diaphragm material to move along the first transport path 300. It should be noted that when the diaphragm material passes through the first tension assembly 320 for tension adjustment, the first drive assembly 330 can then drive the diaphragm material. At this time, the first drive assembly 330 can provide a driving force for the diaphragm material, so that the diaphragm material enters the welding mechanism 200 at a relatively stable speed, ensuring a good coordination between the tension and speed of the diaphragm material, and improving the accuracy of the battery collector electrode automatic production line. Further, the first drive assembly 330 is arranged between the first tape assembly 310 and the welding mechanism 200; the second unwinding mechanism 800 and the third unwinding mechanism 900 are arranged between the first drive assembly 330 and the welding mechanism 200. Such an arrangement can make the structure of the battery collector electrode automatic production line more compact, reduce unnecessary space waste, and also facilitate centralized management and maintenance. Further, in some embodiments, the first drive component 330 includes a main drive roller and a driven roller, wherein the main drive roller and the driven roller can approach and move away from each other. Further, a second pressure-regulating cylinder is also provided in the first drive component 330, wherein the second pressure-regulating cylinder can drive the driven roller to approach or move away from the main drive roller. It can be understood that when the driven roller approaches the main drive roller, the distance between the driven roller and the main drive roller is reduced, and the pressure on the diaphragm material passing through the main drive roller and the driven roller will be relatively large, and vice versa.

[0036] In one embodiment, reference Figure 1 , a first deviation correction component 340 is also provided in the first transport path 300, and the first deviation correction component 340 is arranged downstream of the first drive component 330 and upstream of the welding mechanism 200; the first deviation correction component 340 is arranged between the first drive component 330 and the welding mechanism 200, and further, in one embodiment, the first deviation correction component 340 is configured as a traveling deviation correction mechanism. It can be understood that when the diaphragm material enters the welding mechanism 200, it can be corrected by the first deviation correction component 340, so that the diaphragm material can enter the welding mechanism 200 with a higher position accuracy. In one embodiment, the first deviation correction component 340 cooperates with the first unwinding mechanism 700 with a deviation correction function, so that the diaphragm material can maintain a higher position accuracy when entering the welding mechanism 200 after unwinding, reduce the deviation, thereby improving the welding quality and reducing the scrap rate.

[0037] It should be noted that when the diaphragm material enters the welding mechanism 200 after passing through the first tape connection component 310, the first tension component 320, the first drive component 330, and the first deviation correction component 340, the length of the first transport path 300 will be relatively long, that is, the distance at which the diaphragm material is unwound is relatively far, and the longer unwinding distance can adjust the tension in a larger range, so that the first tension component 320 has more time and space to respond to changes, ensuring that the material maintains a stable tension state during the entire transmission process, and at the same time, the longer unwinding distance can better adapt to higher production speeds, reduce speed fluctuations caused by changing rolls, and ensure that the production line can continue to operate efficiently. And because the unwinding distance is long, the first transport path 300 needs to be longer. At this time, by arranging the positions of the first tape connection component 310, the first tension component 320, the first drive component 330, and the first deviation correction component 340, the battery collector electrode sheet automatic production line in this application can ensure a compact structure while also making the first transport path 300 longer.

[0038] In one embodiment, reference Figure 1 , a second deviation-correcting assembly 410 is provided in the second transport path 400, the second deviation-correcting assembly 410 is provided upstream of the welding mechanism 200, and the second deviation-correcting assembly 410 is provided above the first transport path 300. Further, the second deviation-correcting assembly 410 is also configured as a traveling deviation-correcting mechanism, wherein the second deviation-correcting assembly 410 can correct the deviation of the A-side foil material in the second transport path 400, and ensure that the A-side foil material can enter the welding mechanism 200 with a higher position accuracy. It should be noted that the second unwinding mechanism 800 is provided close to the welding mechanism 200, that is, the distance of the second transport path 400 is relatively short, and at this time, the second deviation-correcting assembly 410 can play a better deviation-correcting role on the A-side foil material. Further, in some embodiments, the second unwinding mechanism may also have a deviation-correcting function, wherein the second unwinding mechanism may refer to the structure of the first unwinding mechanism.

[0039] In one embodiment, reference Figure 1, a third deviation correction component (not shown) is provided in the third transport path (not shown in the figure), the third deviation correction component is arranged upstream of the welding mechanism 200, and the third deviation correction component is arranged below the first transport path 300. Further, the third deviation correction component is also configured as a traveling deviation correction mechanism, wherein the third deviation correction component can correct the B-side foil material in the third transport path, and ensure that the B-side foil material can enter the welding mechanism 200 with a higher position accuracy. It should be noted that the third unwinding mechanism 900 is arranged close to the welding mechanism 200, that is, the distance of the third transport path is relatively short, and at this time, the third deviation correction component can play a better correction role on the B-side foil material. Further, in some embodiments, the third unwinding mechanism may also have a deviation correction function, wherein the third unwinding mechanism may refer to the structure of the first unwinding mechanism. It should also be noted that the third transport path is arranged below the first transport path 300, and the second transport path 400 is arranged above the first transport path 300. At this time, it can ensure that the diaphragm material, A-side foil material, and B-side foil material enter the welding mechanism 200 in a more coordinated manner, and can also make the structure of the battery current collector electrode automatic production line more compact.

[0040] In one embodiment, reference Figure 2 The fourth transport path 600 is provided with a weld print leveling component 610, which is arranged between the welding mechanism 200 and the winding mechanism 10, and is arranged close to the welding mechanism 200. It can be understood that traces or protrusions will remain on the surface of the finished material after welding, which may have an adverse effect on the subsequent process (coating, etc.) of the battery collector electrode. At the same time, the protrusions are prone to generate metal dust, which can easily cause damage to the battery. Further, in some embodiments, the weld print leveling component 610 can be flattened by rolling, and the weld print leveling component 610 is arranged close to the welding mechanism 200, so that the finished material after welding can enter the weld print leveling component 610 at the first time, so that the protrusions on the finished material can be flattened more easily. Further, the weld print leveling component 610 includes a double-layer roller, which can be close to or away from each other. When the double-layer rollers are close to each other, the finished material can be welded and leveled with a large pressure. Furthermore, in some embodiments, one of the double-layer rollers may be a main driving roller.

[0041] In one embodiment, reference Figure 2, a second drive assembly 640 is provided in the fourth transport path 600, the second drive assembly 640 is provided downstream of the welding and flattening assembly 610, and is provided between the welding and flattening assembly 610 and the winding mechanism 10, and is provided close to the welding and flattening assembly 610, and the second drive assembly can drive the finished material to move along the fourth transport path 600. Further, the structure of the second drive assembly can refer to the structure of the first drive assembly 330. It should be noted that the second drive assembly can provide a stable driving force immediately after the finished material is flattened, reducing any delay or instability in the transmission process of the finished material. At the same time, the second drive assembly 640 can also make the process from the finished material after welding to the winding more coherent.

[0042] Further, in some embodiments, reference Figure 2 A fourth deviation-correcting component 660 is disposed in the fourth transport path 600, wherein the fourth deviation-correcting component 660 is disposed downstream of the second driving component 640. Further, the fourth deviation-correcting component 660 may adopt a traveling deviation-correcting mechanism.

[0043] In one embodiment, reference Figure 2 , the fourth transport path 600 is provided with a detection labeling component 620, and the detection labeling component 620 is used to detect the weld marks of the finished materials. Further, in some embodiments, the detection labeling component 620 includes a detection module 621 and a labeling module 622, wherein the detection module 621 is configured as a visual detection module, specifically, the visual detection module includes a CCD camera, wherein the labeling module 622 can paste a colored label on the finished material, and further, the labeling module 622 is arranged downstream of the detection module 621, when the detection module 621 detects that the weld marks in the finished material are unqualified, a corresponding electrical signal is generated, and the electrical signal is fed back to the labeling module 622, at which time the labeling module 622 labels the unqualified finished materials, so that when the finished materials are subsequently processed, the staff finds the label and can cut and discard the part of the finished materials where the label is attached. At the same time, by detecting the labeling component 620, the battery current collector electrode automatic production line itself can also play a quality inspection effect. When the number of labels on the finished material is large, it can indirectly reflect that the welding mechanism 200 or the welding and printing flattening component 610 in the battery current collector electrode automatic production line has an abnormality. At this time, the maintenance personnel can inspect the welding structure or the welding and printing flattening component 610. It can be understood that the label is attached to the finished material by bonding.

[0044] Further, refer to Figure 2, the detection labeling component 620 is arranged downstream of the second drive component 640, the detection labeling component 620 is arranged between the second drive component 640 and the winding mechanism 10, and is located above the second drive component 640. It can be understood that the detection labeling component 620 is arranged above the second drive component 640. On the one hand, it can make use of verticality to make the structure more compact, and on the other hand, it can also reduce the physical interference of other equipment in the detection labeling process, ensuring the accuracy of detection and labeling. Further, when the fourth deviation correction component 660 is provided in the fourth transport path 600, the fourth deviation correction component 660 is arranged downstream of the detection module 621 and upstream of the labeling module 622. In this way, under the action of the fourth deviation correction component 660, the finished material entering the labeling module 622 can maintain a high position accuracy, which is convenient for the labeling module 622 to maintain a high labeling accuracy.

[0045] Further, in some embodiments, reference Figure 2 A second tension component 650 is provided in the fourth transport path 600 , and the second tension component 650 is provided downstream of the detection labeling component 620 . Specifically, the second tension component 650 is provided downstream of the labeling module 622 , wherein the second tension component 650 may adopt the same structure as the first tension component 320 .

[0046] Further, refer to Figure 2 In some embodiments, a second belt connecting assembly 630 is provided in the fourth transport path 600. In this case, the second belt connecting assembly 630 is provided above the winding mechanism 10 and downstream of the detection and labeling assembly 620. Furthermore, when a second tension assembly 650 is provided in the fourth transport path 600, the second belt connecting assembly 630 is provided downstream of the second tension assembly 650, wherein the principle of the second belt connecting assembly 630 is similar to that of the first belt connecting assembly 310.

[0047] Further, refer to Figure 2 When the fourth transport path 600 is equipped with the welding and printing flattening component 610, the detection and labeling component 620, the second belt connection component 630, the second drive component 640, the second tension component 650, and the fourth deviation correction component 660, the transport length of the fourth transport path 600 will be relatively long. At this time, when the finished material moves in the fourth transport path, the distance over which the finished material is rolled up is relatively long. The longer rolling distance can adjust the tension within a larger range.

[0048] In one embodiment, reference Figure 1The frame 100 includes a first mounting portion 110 and a second mounting portion 120, the first mounting portion 110 and the second mounting portion 120 are spliced, the first transport path 300, the second transport path 400, the third transport path, the first unwinding mechanism 700, the second unwinding mechanism 800, and the third unwinding mechanism 900 are installed on the first mounting portion 110; the fourth transport path 600, the winding mechanism 10, and the second tape assembly 630 are installed on the second mounting portion 120. It can be understood that the battery current collector pole piece automatic production line consists of two modules, one of which includes a first mounting portion 110 and a structure arranged on the first mounting portion 110, and the other module includes a second mounting portion 120 and a structure arranged on the second mounting portion 120. At this time, when any one of the modules is broken and needs to be discarded, the other module can be used directly. Alternatively, when the production line is upgraded and it is necessary to add other processes (gluing) after welding the finished materials and before winding them, the first mounting part 110 and the second mounting part 120 can be disassembled, and a third mounting part can be set between the first mounting part 110 and the second mounting part 120. At this time, the third mounting part is provided with a gluing mechanism (not shown) and a fifth transport path (not shown). The fifth transport path can receive the finished materials coming out of the discharge end 220 of the welding mechanism 200 and glue them. At this time, the fourth transport path 600 in the second mounting part 120 can receive the finished materials in the fifth path, and the winding mechanism 10 in the second mounting part 120 can wind the materials.

[0049] Furthermore, in some reference scenarios, when multiple battery current collector electrode automated production lines are set up in a factory, if different modules in two battery current collector electrode automated production lines are damaged and need repair, the intact different modules in the two battery current collector electrode automated production lines can be spliced ​​together and continued to be used, thereby ensuring production.

[0050] Furthermore, in some embodiments, universal wheels with self-locking function are installed at the bottom of the first mounting part 110 and the second mounting part 120 (not shown in the figure). At this time, when the first mounting part 110 and the second mounting part 120 are moved, the convenience of moving can be improved under the action of the universal wheels.

[0051] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An automated production line for battery current collector pole pieces, characterized in that: include: frame, A welding mechanism is installed on the frame, the welding mechanism is provided with a feed end and a discharge end, the frame is provided with a first transport path for conveying diaphragm materials, a second transport path for conveying A-side foil materials, a third transport path for conveying B-side foil materials, and a fourth transport path for conveying finished products, the first transport path, the second transport path and the third transport path can be connected to the feed end of the welding mechanism, and the fourth transport path can be connected to the discharge end of the welding mechanism; A first unwinding mechanism, installed on the frame, for placing the diaphragm material and capable of conveying the diaphragm material into a first transport path; A second unwinding mechanism, installed on the frame, for placing the A-side foil material, and capable of conveying the A-side foil material into the second transport path; A third unwinding mechanism, installed on the frame, for placing the B-side foil material, and capable of conveying the B-side foil material into a third transport path; and The winding mechanism is installed on the frame and is used for winding the finished product materials in the fourth transport path.

2. The battery current collector electrode automatic production line according to claim 1, characterized in that: A first belt splicing assembly is provided in the first transport path, and the first belt splicing assembly is used to splice two sections of the diaphragm material. The first belt splicing assembly is arranged close to the first unwinding mechanism and is located above the first unwinding mechanism; The first unwinding mechanism, the second unwinding mechanism and the third unwinding mechanism are arranged on one side of the welding mechanism, the winding mechanism is arranged on the other side of the welding mechanism, and the second unwinding mechanism and the third unwinding mechanism are arranged between the first unwinding mechanism and the welding mechanism.

3. The battery current collector electrode automatic production line according to claim 2, characterized in that: A first tension component is also provided in the first transport path. The first tension component is provided downstream of the first belt connecting component and above the first belt connecting component. The first tension component is provided on a side of the first unwinding mechanism away from the welding mechanism.

4. The battery current collector electrode automatic production line according to claim 3, characterized in that: A first driving component is also provided in the first transport path, and the first driving component is provided downstream of the first tension component, and the first driving component can drive the diaphragm material to move along the first transport path; The first driving assembly is disposed between the first belt connecting assembly and the welding mechanism; The second unwinding mechanism and the third unwinding mechanism are arranged between the first driving assembly and the welding mechanism.

5. The battery current collector electrode automatic production line according to claim 4, characterized in that: A first deviation-correcting component is also provided in the first transport path, and the first deviation-correcting component is provided downstream of the first driving component and upstream of the welding mechanism; The first deviation-correcting assembly is arranged between the first driving assembly and the welding mechanism.

6. The battery current collector electrode automatic production line according to claim 1, characterized in that: A second deviation-correcting component is provided in the second transport path, the second deviation-correcting component is provided upstream of the welding mechanism, and the second deviation-correcting component is provided above the first transport path; And / or, a third deviation-correcting component is provided in the third transport path, the third deviation-correcting component is provided upstream of the welding mechanism, and the third deviation-correcting component is provided below the first transport path; And / or, the first unwinding mechanism and the rewinding mechanism have a deviation correction function.

7. The battery current collector electrode automatic production line according to claim 1, characterized in that: A welding and flattening component is arranged in the fourth transport path. The welding and flattening component is arranged between the welding mechanism and the winding mechanism and is arranged close to the welding mechanism.

8. The battery current collector electrode automatic production line according to claim 7, characterized in that: A second driving component is arranged in the fourth transport path. The second driving component is arranged downstream of the welding and flattening component, and is arranged between the welding and flattening component and the winding mechanism, and is arranged close to the welding and flattening component. The second driving component can drive the finished material to move along the fourth transport path.

9. The battery current collector electrode automatic production line according to claim 8, characterized in that: The fourth transport path is provided with a detection labeling component, and the detection labeling component is used to detect the welding mark of the finished product material; The detection labeling assembly is arranged downstream of the second driving assembly, the detection labeling assembly is arranged between the second driving assembly and the winding mechanism, and is located above the second driving assembly; A second belt splicing assembly is arranged in the fourth transport path. In this case, the second belt splicing assembly is arranged above the winding mechanism and downstream of the detection and labeling assembly.

10. The battery current collector electrode automatic production line according to any one of claims 1 to 9, characterized in that: The frame includes a first mounting portion and a second mounting portion, the first mounting portion and the second mounting portion are spliced, and the first transport path, the second transport path, the third transport path, the first unwinding mechanism, the second unwinding mechanism, and the third unwinding mechanism are installed on the first mounting portion; The fourth transport path and the winding mechanism are installed on the second installation portion.

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