Modular production line and battery current collector pole piece production process

Abstract

The invention discloses a modular production line and a battery current collector pole piece production process, and relates to the technical field of battery production equipment.The modular production line comprises a rack, and the rack comprises a first mounting part, a second mounting part and a third mounting part which are spliced; the unwinding and welding unit is mounted on the first mounting part, and the unwinding and welding unit can unwind and weld the material and output a first finished product material; the gluing mechanism is arranged on the downstream portion of the unwinding and welding unit and installed on the third installation part, and the gluing mechanism can receive the first finished product material, conduct gluing on the first finished product material and output a second finished product material; and the winding mechanism is arranged on the downstream portion of the gluing mechanism and installed on the second installation part, and the winding mechanism can wind the second finished product material. According to the technical scheme provided by the invention, the problem of poor flexibility of an existing battery cell automatic production line can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production equipment, and in particular to a modular production line and a battery current collector pole piece production process. Background Art

[0002] The battery current collector electrode includes a diaphragm and foil (AB side foil), in which the foil is welded to the diaphragm. The battery current collector electrode automated production line is a crucial part of the lithium battery manufacturing process. The battery current collector electrode automated production line includes an unwinding module, a slitting module, a welding module, a gluing module, a winding module, etc.

[0003] In the existing battery current collector electrode automated production line, the unwinding module, slitting module, welding module, gluing module, and winding module are integrated on one machine. If other modules need to be added or deleted in the battery current collector electrode automated production line, the above modules need to be removed from the machine and then rearranged, which has poor flexibility and slows down the upgrade or disassembly of the production line. Summary of the invention

[0004] The main purpose of the present invention is to propose a modular production line, aiming to solve the problem of poor flexibility of existing battery cell automated production lines.

[0005] To achieve the above objectives, the modular production line proposed by the present invention comprises: A frame, the frame comprising a first mounting portion, a second mounting portion, and a third mounting portion that are spliced ​​together; An unwinding and welding unit is installed on the first installation portion, and the unwinding and welding unit can unwind and weld the material and output the first finished product material; A gluing mechanism, disposed downstream of the unwinding and welding unit and mounted on the third mounting portion, the gluing mechanism being capable of receiving the first finished material, gluing it, and outputting a second finished material; and a winding mechanism, which is arranged downstream of the gluing mechanism and installed on the second installation portion, and the winding mechanism can wind up the second finished material.

[0006] In one embodiment, the second mounting portion is spliced ​​with the first mounting portion and the third mounting portion.

[0007] In one embodiment, the first installation portion is provided with a first transport path, a second transport path, and a third transport path; The unwinding and welding unit comprises a first unwinding mechanism arranged at the head end of the first transport path, a second unwinding mechanism arranged at the head end of the second transport path, a third unwinding mechanism arranged at the head end of the third transport path, a slitting mechanism arranged in the first transport path, and a first welding mechanism, wherein the slitting mechanism is arranged downstream of the first unwinding mechanism, the first welding mechanism is arranged downstream of the slitting mechanism, the ends of the second transport path and the third transport path can be connected to the first transport path, and the ends of the second transport path and the third transport path are arranged downstream of the slitting mechanism and upstream of the first welding mechanism; The first unwinding mechanism is used for placing the diaphragm material, and the diaphragm material can move along the first transport path; The second unwinding mechanism is used for placing the first A-side foil material, and the first A-side foil material can move along the second transport path; The third unwinding mechanism is used for placing the first B-side foil material, and the first B-side foil material can move along the third transport path; The diaphragm material is provided with a first side and a second side, the first side and the second side are arranged opposite to each other, the first welding mechanism can weld the first A-side foil material and the first B-side foil material to the first side of the diaphragm material, and the end of the first transport path can output the first finished material.

[0008] In one embodiment, the first installation portion is provided with a fourth transport path and a fifth transport path; The unwinding and welding unit further comprises a fourth unwinding mechanism disposed at the head end of the fourth transport path, a fifth unwinding mechanism disposed at the head end of the fifth transport path, and a second welding mechanism disposed in the first transport path, wherein the second welding mechanism is disposed downstream of the first welding mechanism, and the ends of the fourth transport path and the fifth transport path can be connected to the first transport path, and the ends of the fourth transport path and the fifth transport path are disposed downstream of the first welding mechanism and upstream of the second welding mechanism; The fourth unwinding mechanism is used for placing the second A-side foil material, and the second A-side foil material can move along the fourth transport path; The fifth unwinding mechanism is used for placing the second B-side foil material, and the second B-side foil material can move along the fifth transport path; The second welding mechanism can weld the second A-side foil material and the second B-side foil material to the second side of the diaphragm material, and the end of the first transport path can output a first finished product material.

[0009] In one embodiment, the second transport path and the fourth transport path are arranged on one side of the first transport path; The third transport path and the fifth transport path are arranged on the other side of the first transport path.

[0010] In one embodiment, the unwinding and welding unit further comprises a first belt splicing assembly, a first tension assembly, a first deviation correcting assembly, a first driving assembly, a second tension assembly, a second deviation correcting assembly, a first welding and printing leveling assembly, a second welding and printing leveling assembly, and a dust removal assembly, which are arranged in the first transport path; The first belt connecting assembly is arranged downstream of the first unwinding mechanism and above the first unwinding mechanism, the first tension assembly is arranged downstream of the first belt connecting assembly and above the first belt connecting assembly, the first deviation correcting assembly is arranged downstream of the first tension assembly and upstream of the slitting mechanism and above the first belt connecting assembly, the first driving assembly is arranged downstream of the slitting mechanism, the second tension assembly is arranged downstream of the first driving assembly and below the first driving assembly, the second deviation correcting assembly is arranged downstream of the second tension assembly and upstream of the first welding mechanism, the first welding and printing flattening assembly is arranged downstream of the first welding mechanism and upstream of the second welding mechanism, the second welding and printing flattening assembly is arranged downstream of the second welding mechanism, and the dust removal assembly is arranged downstream of the second welding mechanism.

[0011] In one embodiment, the first mounting portion includes a fourth mounting portion and a fifth mounting portion that are spliced ​​together; The first unwinding mechanism, the second unwinding mechanism, the third unwinding mechanism, the slitting mechanism, the first welding mechanism, the first tape splicing assembly, the first tension assembly, the first deviation correcting assembly, the first driving assembly, the second tension assembly, the second deviation correcting assembly, and the first welding and printing leveling assembly are arranged on the fourth mounting portion; The fourth unwinding mechanism, the fifth unwinding mechanism, the second welding mechanism, the second welding and printing leveling assembly, and the dust removal assembly are arranged on the fifth mounting portion.

[0012] In one embodiment, the frame is provided with a sixth transport path, the sixth transport path is provided at the second mounting portion and the third mounting portion, the head end of the sixth transport path is placed at the second mounting portion, and is capable of receiving the first finished material outputted from the end of the first transport path, and the end of the sixth transport path is placed at the third mounting portion; The gluing mechanism comprises a first gluing component and a second gluing component arranged in the sixth transport path, the first gluing component is used to apply glue to the A surface of the first finished material, and the second gluing component is used to apply glue to the B surface of the first finished material; The sixth transport path is also provided with a second detection component and a third detection component. The second detection component is provided upstream of the first gluing component, and the third detection component is provided upstream of the second gluing component and downstream of the first gluing component.

[0013] In one embodiment, the second installation portion is provided with a seventh transport path, and the second finished material is input into the seventh transport path through the head end of the seventh transport path; The reeling mechanism is disposed at the end of the seventh transport path; The modular production line also includes a detection and labeling component, which includes a detection module and a labeling module. The detection module is arranged downstream of the second welding and printing and leveling component and upstream of the dust removal component, and the labeling module is arranged upstream of the winding mechanism and downstream of the dust removal component.

[0014] The present invention also proposes a battery current collector pole piece production process, which is applied to a modular production line. The battery current collector pole piece production process comprises: The first unwinding mechanism unwinds the diaphragm material, the diaphragm material moves along the first transport path and enters the first welding mechanism, the second unwinding mechanism unwinds the first A-side foil material, the first A-side foil material moves along the second transport path and enters the first welding mechanism, the third unwinding mechanism unwinds the first B-side foil material, the first B-side foil material moves along the third transport path and enters the first welding mechanism, and the first welding mechanism welds the first A-side foil material and the first B-side foil material to the first side of the diaphragm material; The material processed by the first welding mechanism moves along the first transport path and enters the second welding mechanism. The fourth unwinding mechanism unwinds the second A-side foil material, and the second A-side foil material enters the second welding mechanism along the fourth transport path. The fifth unwinding mechanism unwinds the second B-side foil material, and the second B-side foil material enters the second welding mechanism along the fifth transport path. The second welding mechanism welds the second A-side foil material and the second B-side foil material to the second side of the diaphragm material. The first finished material can be output at the end of the first transport path. The sixth transport path receives the first finished material, the first finished material moves along the sixth transport path, the gluing mechanism glues the first finished material, and the end of the sixth transport path can output a second finished material; The seventh transport path receives the second finished material, the second finished material moves along the seventh transport path, and the winding mechanism winds the second finished material.

[0015] The technical solution of the present invention divides the frame into a first mounting part, a second mounting part and a third mounting part, and respectively mounts the unwinding welding unit, the gluing mechanism and the winding mechanism on different mounting parts, and the first mounting part, the second mounting part and the third mounting part are spliced ​​together, so that the production line can be modularized, wherein the modular design can improve the flexibility of the production line. If it is necessary to remove the gluing mechanism, the third mounting part can be directly removed from the production line without removing the first mounting part and the second mounting part, which can more flexibly adapt to changes in customer needs, making the production line upgrade or disassembly slower or faster, shortening the production preparation time, and solving the technical problems existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] Figure 1 A schematic structural diagram of an embodiment of a modular production line provided by the present invention; Figure 2 for Figure 1 Schematic diagram of the modular production line; Figure 3 for Figure 2 The enlarged view of point A in the middle; Figure 4 for Figure 2 The enlarged view of point B in the middle; Figure 5 for Figure 2 Enlarged view of point C in the middle; Figure 6 for Figure 2 The enlarged view of point D in the middle; Figure 7 A structural schematic diagram of an embodiment of a first installation part in a modular production line provided by the present invention; Figure 8 A schematic diagram of the steps of the battery current collector electrode production process provided by the present invention.

[0018] Description of Figure Numbers: 100, rack; 110, first mounting portion; 111, fourth mounting portion; 112, fifth mounting portion; 120, second mounting portion; 130, third mounting portion; 140, first transport path; 150, second transport path; 160, third transport path; 170, fourth transport path; 180, fifth transport path; 190, sixth transport path; 1100, seventh transport path; 200, unwinding and welding unit; 210, first unwinding mechanism; 220, second unwinding mechanism; 230, third unwinding mechanism; 240, slitting mechanism; 250, first welding mechanism; 260, fourth unwinding mechanism; 270, fifth unwinding mechanism; 280, second welding mechanism; 290, first belt connection assembly; 2200, first tension assembly; 2210, first deviation correction assembly; 2220, first driving assembly; 2230, second tension assembly; 2240, second deviation correction assembly; 2250, first welding and printing leveling assembly; 2260, second welding and printing leveling assembly; 2270, dust removal assembly; 2280, first detection assembly; 300, glue coating mechanism; 310, first glue coating component; 320, second glue coating component; 330, second detection component; 340, third detection component; 400, detection labeling component; 410, detection module; 420, labeling module; 421, first labeling module; 422, second labeling module; 500, third tension assembly; 600, second drive assembly; 700, third deviation correction assembly; 800, fourth deviation correction assembly; 900, third drive assembly; 10, fifth tension assembly; 20, transport roller; 30, winding mechanism; 40, fourth tension assembly; 50, second belt splicing assembly.

[0019] 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

[0020] 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.

[0021] 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.

[0022] 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.

[0023] The battery current collector electrode includes a diaphragm and foil (AB side foil), in which the foil is welded to the diaphragm. The battery current collector electrode automated production line is a crucial part of the lithium battery manufacturing process. The battery current collector electrode automated production line includes an unwinding module, a slitting module, a welding module, a gluing module, a winding module, etc.

[0024] In the existing battery current collector electrode automated production line, the unwinding module, slitting module, welding module, gluing module, and winding module are integrated on one machine. If other modules need to be added or deleted in the battery current collector electrode automated production line, the above modules need to be removed from the machine and then rearranged, which has poor flexibility and slows down the upgrade or disassembly of the production line.

[0025] The invention provides a modular production line.

[0026] See also Figure 1In one embodiment of the present invention, the modular production line includes: a frame 100, an unwinding and welding unit 200, a gluing mechanism 300, and a winding mechanism 30. The frame 100 includes a first mounting portion 110, a second mounting portion 120, and a third mounting portion 130 that are spliced ​​together; the unwinding and welding unit 200 is installed on the first mounting portion 110, and the unwinding and welding unit 200 can unwind and weld the material, and output the first finished material; it should be noted that the unwinding and welding unit 200 can unwind a plurality of materials, and then process the plurality of materials into the first finished material, wherein the plurality of materials are at least two materials, and when the material is unwinded, a corresponding unwinding mechanism is set for each material. The gluing mechanism 300 is arranged downstream of the unwinding and welding unit 200 and is installed on the third installation part 130. The gluing mechanism 300 can receive the first finished material, glue it, and output the second finished material. That is to say, the first finished material output by the unwinding and welding unit 200 can be glued by the gluing mechanism 300 and then output outwardly by the gluing mechanism 300. At this time, the gluing mechanism 300 outputs the second finished material outwardly; the winding mechanism 30 is arranged downstream of the gluing mechanism 300 and is installed on the second installation part 120. The winding mechanism 30 can wind up the second finished material. After the gluing mechanism 300 glues the first finished material, it outputs the second finished material outwardly. At this time, the winding mechanism 30 can wind up the second finished material.

[0027] It can be understood that by dividing the frame 100 into a first mounting portion 110, a second mounting portion 120 and a third mounting portion 130, and installing the unwinding welding unit 200, the gluing mechanism 300 and the winding mechanism 30 on different mounting portions, and splicing the first mounting portion 110, the second mounting portion 120 and the third mounting portion 130, the production line can be modularized, wherein the modular design can improve the flexibility of the production line. If it is necessary to remove the gluing mechanism 300, the third mounting portion 130 can be directly removed from the production line without removing the first mounting portion 110 and the second mounting portion 120, which can more flexibly adapt to changes in customer needs, making the production line upgrade or disassembly slower or faster, shortening the production preparation time, and solving the technical problems existing in the prior art.

[0028] It should also be noted that the maintenance of the modular production line is more convenient. Since each module is relatively independent, when a module fails, it can be quickly located and repaired, reducing the impact on the production line. For example, if the gluing mechanism 300 fails, the third mounting portion 130 can be removed from the production line, and the winding mechanism 30 can wind up the first finished material without affecting the production of the first finished material. After the gluing mechanism 300 is repaired, the wound first finished material is unwound, and then the gluing mechanism 300 glues it to obtain the second finished material.

[0029] Further, in one embodiment, referring to Figure 1 The second mounting part 120 is spliced ​​with the first mounting part 110 and the third mounting part 130, that is, the second mounting part 120 is arranged between the first mounting part 110 and the third mounting part 130. At this time, if the gluing mechanism 300 needs to be removed from the production line, since the third mounting part 130 is arranged on one side of the second mounting part 120, it is more convenient to remove it.

[0030] In one embodiment (not shown), the third mounting portion 130 connects the first mounting portion 110 and the second mounting portion 120, that is, the third mounting portion 130 is arranged between the first mounting portion 110 and the second mounting portion 120, so that the path for the first finished product material to enter the gluing mechanism 300 can be reduced, so that the structure of the frame 100 is relatively compact and the occupied space is as small as possible.

[0031] In one embodiment, reference Figure 2 , Figure 3 , the first installation portion 110 is provided with a first transport path 140 , a second transport path 150 , and a third transport path 160 ; The unwinding and welding unit 200 includes a first unwinding mechanism 210 arranged at the head end of the first transport path 140, a second unwinding mechanism 220 arranged at the head end of the second transport path 150, a third unwinding mechanism 230 arranged at the head end of the third transport path 160, a slitting mechanism 240 arranged in the first transport path 140, and a first welding mechanism 250, wherein the slitting mechanism 240 is arranged downstream of the first unwinding mechanism 210, and the first welding mechanism 250 is arranged downstream of the slitting mechanism 240, the ends of the second transport path 150 and the third transport path 160 can be connected to the first transport path 140, and the ends of the second transport path 150 and the third transport path 160 are arranged downstream of the slitting mechanism 240 and upstream of the first welding mechanism 250; wherein the first welding mechanism 250 is configured as an ultrasonic welding device. In some embodiments, the ultrasonic welding equipment includes a welding head, a mounting frame, and a welding seat. In some embodiments, the welding head can be a roller welding welding head. Furthermore, the welding head and the welding seat in the ultrasonic welding equipment 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. Furthermore, 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 closer to 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. Further, in one embodiment, the slitting mechanism 240 includes an upper cutting die, a lower cutting die, and a waste box, wherein the upper cutting die and the lower cutting die can be set as a whole, and the waste box is used to receive waste. Specifically, the slitting mechanism 240 is used to process the diaphragm material so that the width of the diaphragm material meets the requirements. Specifically, the diaphragm material has a first side and a second side, and the width of the diaphragm material is the vertical distance between the first side and the second side. Further, in some embodiments, the slitting mechanism 240 can also use other structures to cut the diaphragm material so that the width of the diaphragm material meets the requirements.

[0032] The first unwinding mechanism 210 is used for placing the diaphragm material, and the diaphragm material can move along the first transport path 140; since the first unwinding mechanism 210 is arranged at the head end of the first transport path 140, the first unwinding mechanism 210 can transport the diaphragm material into the first transport path 140 when unwinding the diaphragm material. It should be noted that the diaphragm material is placed in the first unwinding mechanism 210 in a roll shape, and the first transport path 140 includes a plurality of transport rollers 20.

[0033] The second unwinding mechanism 220 is used for placing the first A-side foil material, and the first A-side foil material can move along the second transport path 150; since the second unwinding mechanism 220 is arranged at the head end of the second transport path 150, the second unwinding mechanism 220 can transport the first A-side foil material into the second transport path 150 when unwinding the first A-side foil material. It should be noted that the first A-side foil material is placed in the second unwinding mechanism 220 in a roll shape, and the second transport path 150 includes a plurality of transport rollers 20.

[0034] The third unwinding mechanism 230 is used for placing the first B-side foil material, and the first B-side foil material can move along the third transport path 160; since the third unwinding mechanism 230 is arranged at the head end of the third transport path 160, the third unwinding mechanism 230 can transport the first B-side foil material into the third transport path 160 when unwinding the first B-side foil material. It should be noted that the first B-side foil material is placed in the third unwinding mechanism 230 in a roll shape, and the third transport path 160 includes a plurality of transport rollers 20.

[0035] The diaphragm material is provided with a first side and a second side, the first side and the second side are arranged oppositely, the first welding mechanism 250 can weld the first A-side foil material and the first B-side foil material to the first side of the diaphragm material, and the end of the first transport path 140 can output the first finished product material. It should be noted that the method adopted for welding the diaphragm material and the foil in the prior art is to first make the diaphragm material into a sheet structure, and then weld the foil to the diaphragm material with a sheet structure. This method is less efficient during production and processing, because after processing each diaphragm material, the robot arm needs to grab another diaphragm material, and between the continuous welding work of the diaphragm material, there is an additional process of the robot arm grabbing the diaphragm material, which will result in a longer preparation time for welding the diaphragm material and the foil. When the unwinding welding unit 200 adopts the above structure, the diaphragm material and the foil can be continuously entered into the first welding mechanism 250 by unwinding, and the first welding mechanism can continuously process the diaphragm material and the foil, saving the time for the robot arm to grab the sheet diaphragm material, which can effectively improve the production efficiency. That is to say, when the unwinding and welding unit 200 adopts the above structure, the modular production line of this embodiment has high flexibility and can also improve the processing efficiency of the diaphragm material, thereby improving the production efficiency of the battery current collector electrode.

[0036] In one embodiment, reference Figure 2 , Figure 4 , the first installation portion 110 is provided with a fourth transport path 170 and a fifth transport path 180; The unwinding and welding unit 200 further includes a fourth unwinding mechanism 260 disposed at the head end of the fourth transport path 170, a fifth unwinding mechanism 270 disposed at the head end of the fifth transport path 180, and a second welding mechanism 280 disposed in the first transport path 140, wherein the second welding mechanism 280 is disposed downstream of the first welding mechanism 250, and the ends of the fourth transport path 170 and the fifth transport path 180 can be connected to the first transport path 140, and the ends of the fourth transport path 170 and the fifth transport path 180 are disposed downstream of the first welding mechanism 250 and upstream of the second welding mechanism 280. Further, the second welding mechanism 280 can also be configured as an ultrasonic welding device, and if the second welding mechanism 280 is configured as an ultrasonic welding device, the second welding mechanism 280 can use the same device as the first welding mechanism 250.

[0037] The fourth unwinding mechanism 260 is used for placing the second A-side foil material, and the second A-side foil material can move along the fourth transport path 170; since the fourth unwinding mechanism 260 is arranged at the head end of the fourth transport path 170, the fourth unwinding mechanism 260 can transport the second A-side foil material into the fourth transport path 170 when unwinding the second A-side foil material. It should be noted that the first A-side foil material is placed in the fourth unwinding mechanism 260 in a roll shape, and the fourth transport path 170 includes a plurality of transport rollers 20.

[0038] The fifth unwinding mechanism 270 is used for placing the second B-side foil material, and the second B-side foil material can move along the fifth transport path 180; since the fifth unwinding mechanism 270 is arranged at the head end of the fifth transport path 180, the fifth unwinding mechanism 270 can transport the second B-side foil material into the fifth transport path 180 when unwinding the second B-side foil material. It should be noted that the second B-side foil material is placed in the fifth unwinding mechanism 270 in a roll shape, and the fifth transport path 180 includes a plurality of transport rollers 20.

[0039] The second welding mechanism 280 can weld the second A-side foil material and the second B-side foil material to the second side of the diaphragm material, and the end of the first transport path 140 can output the first finished material. It should be noted that when the unwinding welding unit 200 also includes the second welding mechanism 280, the production line can perform foil welding on both the first side and the second side of the diaphragm material. It only needs to add the second welding mechanism 280 to the production line to meet the above requirements. At the same time, the production line is modularly designed, which can be more convenient when adding the second welding mechanism 280. Furthermore, the modular design can improve the flexibility of the production line while having a better ability to cope with production line upgrades.

[0040] In one embodiment, reference Figure 2 , Figure 3 , Figure 4 The second transport path 150 and the fourth transport path 170 are arranged on one side of the first transport path 140. It can be understood that the second unwinding mechanism 220 and the third unwinding mechanism 230 are arranged on one side of the first transport path 140; the third transport path 160 and the fifth transport path 180 are arranged on the other side of the first transport path 140. Similarly, the third unwinding mechanism 230 and the fifth unwinding mechanism 270 are arranged on the other side of the first transport path 140. Such an arrangement can make better use of the vertical space of the frame 100 and avoid the horizontal space of the production line being too long, which makes it difficult to place the production line in the workshop. Specifically, the second unwinding mechanism 220 and the third unwinding mechanism 230 are arranged on one side of the first welding mechanism 250, and the fourth unwinding mechanism 260 and the fifth unwinding mechanism 270 are arranged on the other side of the welding mechanism, so that the first A-side foil material and the first B-side foil material can better enter the first welding mechanism 250, and the second A-side foil material and the second B-side foil material can better enter the second welding mechanism 280.

[0041] Further, in some embodiments, the first unwinding mechanism 210, the second unwinding mechanism 220, the third unwinding mechanism 230, the fourth unwinding mechanism 260, the fifth unwinding mechanism 270 and the winding mechanism 30 all have a correction function. Specifically, taking the first unwinding mechanism 210 as an example, the first unwinding mechanism 210 includes an inflatable shaft and an unwinding roller, wherein the inflatable shaft in the first unwinding mechanism 210 is used for placing the diaphragm material, wherein the inflatable shaft in the first unwinding mechanism 210 can fix the rolled diaphragm material on the inflatable shaft after being inflated, and after the inflatable shaft in the first unwinding mechanism 210 is deflated, the diaphragm material can be removed from the inflatable shaft in the first unwinding mechanism 210, and further, the unwinding roller can swing around the inflatable shaft, wherein the inflatable shaft in the first unwinding mechanism 210 can be driven to rotate, thereby unwinding the diaphragm material. Further, in some embodiments, in order to make the first unwinding mechanism 210 have a correction function, the air shaft and the unwinding roller in the first unwinding mechanism 210 can be installed on a slide, and the slide can move back and forth along the axis direction of the air shaft in the first unwinding mechanism 210, so as to realize the movement of the air shaft in the first unwinding mechanism 210, and the air shaft in the first unwinding mechanism 210 can adjust the unwinding direction of the diaphragm material when it moves, so as to achieve the purpose of correction. The second unwinding mechanism 220, the third unwinding mechanism 230, the fourth unwinding mechanism 260, and the fifth unwinding mechanism 270 have the same structure as the first unwinding mechanism 210. The winding mechanism 30 is similar to the first unwinding mechanism 210, wherein the winding mechanism 30 includes an air shaft and a pressure roller, and the finished material is installed on the air shaft in the winding mechanism 30, and the pressure roller can press the finished material in the winding, wherein the air shaft in the winding mechanism 30 can be driven to rotate, so as to wind the finished material. Furthermore, in order to make the winding mechanism 30 have a deviation correction function, the pneumatic shaft and the pressure roller in the winding mechanism 30 can be installed on another slide. At this time, the other slide can reciprocate along the axial direction of the pneumatic shaft in the winding mechanism 30, thereby realizing the movement of the pneumatic shaft in the winding mechanism 30. When the pneumatic shaft in the winding mechanism 30 is active, the winding direction of the finished material can be adjusted to achieve the purpose of deviation correction.

[0042] In one embodiment, Figure 2 , Figure 3 , Figure 4The unwinding and welding unit 200 further includes a first belt connection assembly 290, a first tension assembly 2200, a first deviation correction assembly 2210, a first driving assembly 2220, a second tension assembly 2230, a second deviation correction assembly 2240, a first welding and printing leveling assembly 2250, a second welding and printing leveling assembly 2260, and a dust removal assembly 2270, which are arranged in the first transport path 140; further, in some embodiments, the first tension assembly 2200 and the second tension assembly 2230 include a tension swing rod, wherein the tension swing rod is installed on the first installation portion 110; the first The deviation correction component 2210 and the second deviation correction component 2240 are configured as a traveling deviation correction structure; the first driving component 2220 includes a main driving roller and a driven roller, wherein the main driving roller and the driven roller can move closer to or farther from each other, further, the first driving component 2220 is also provided with a second pressure regulating cylinder, wherein the second pressure regulating cylinder can drive the driven roller closer to or farther from the main driving roller, it can be understood that when the driven roller approaches the main driving roller, the distance between the driven roller and the main driving roller is reduced, and the pressure on the diaphragm material passing through the main driving roller and the driven roller will be relatively large, and vice versa. The first welding and printing leveling component 2250 and the second welding and printing leveling component 2260 can be roller-pressed and leveled, and further the welding and printing leveling component includes a double-layer roller, the double-layer roller can move closer to or farther from each other, and when the double-layer rollers move closer to each other, the finished material can be welded and leveled with a greater pressure. Further, in some embodiments, one of the double-layer rollers can be the main driving roller. Further, in some embodiments, the dust removal component 2270 includes a brush, a magnetic rod, and a brush box, wherein the brush is a rod-shaped structure and can rotate, the brush is installed in the brush box, the brush box is connected to a negative pressure dust collector, and the dust removal port is equipped with a wind volume and wind speed sensor corresponding to dust cleaning. When the wind pressure is abnormal, the wind speed sensor feeds back to the terminal device, wherein the brush rotates to remove dust from the first finished material, the magnetic rod can absorb iron filings on the first finished material, and non-iron filings can be adsorbed by the negative pressure dust collector. The first belt connecting component 290 is arranged downstream of the first unwinding mechanism 210 and above the first unwinding mechanism 210. 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 production line, it can drive the head end of the new diaphragm material to move, thereby avoiding the rerouting of the new diaphragm material, further improving production efficiency.The first tension component 2200 is arranged downstream of the first connecting belt component 290 and above the first connecting belt component 290. It can be understood that the provision of the first tension component 2200 helps to prevent the diaphragm material from being loosened 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 2200 can also make the diaphragm material more stable during transmission. The first tension component 2200 is arranged above the first connecting belt component 290. At this time, the first tension component 2200 can provide an upward traction force to the diaphragm material. This traction force can help the diaphragm material enter the subsequent process more smoothly, and at the same time, it can also avoid the friction that may be encountered in the horizontal direction, improve the movement efficiency of the diaphragm material, thereby improving the processing efficiency. At the same time, it is arranged above the first connecting belt component 290, and the height space of the frame 100 can also be used to improve space utilization. The first correcting component 2210 is arranged downstream of the first tensioning component 2200, upstream of the slitting mechanism 240, and above the first connecting belt component 290. At this time, before the diaphragm material enters the slitting mechanism 240, it will first pass through the first correcting component 2210 to correct it and adjust its position accuracy, so that the diaphragm material enters the slitting mechanism 240 with higher position accuracy. At this time, the slitting mechanism 240 can ensure better processing accuracy when cutting the diaphragm material.

[0043] The first driving component 2220 is arranged downstream of the slitting mechanism 240. At this time, the first driving component 2220 is used to provide a driving force for the diaphragm material so that the Shudie diaphragm material can move well in the first transport path 140. The second tension component 2230 is arranged downstream of the first driving component 2220 and below the first driving component 2220. The second deviation-correcting component 2240 is arranged downstream of the second tension component 2230 and upstream of the first welding mechanism 250. This arrangement is to prevent the diaphragm material driven by the first driving component 2220 from directly entering the second deviation-correcting component 2240. At this time, the diaphragm material is affected by the driving force of the first driving component 2220, which will make the second deviation-correcting component 2240 have a poor effect in deviation correction. In order to avoid this situation, the first driving component 2220 and the second deviation-correcting component 2240 are connected. A second tension component 2230 is arranged between 40, and the second tension component 2230 is arranged below the first driving component 2220, so that after the diaphragm material passes through the first driving component 2220, it needs to move a longer path when reaching the second correcting component 2240, so that the diaphragm material can enter the second correcting component 2240, and during the correction by the second correcting component 2240, the influence of the driving force on it is reduced, thereby ensuring the correction effect, further, after the correction, the diaphragm material can enter the first welding mechanism 250 with better position accuracy, and at this time the first welding mechanism 250 can process the diaphragm material.

[0044] The first weld print and leveling component 2250 is arranged downstream of the first welding mechanism 250 and upstream of the second welding mechanism 280. The second weld print and leveling component 2260 is arranged downstream of the second welding mechanism 280. The dust removal component 2270 is arranged downstream of the second welding mechanism 280. It can be understood that traces or protrusions will remain on the surface of the material after welding, which may have an adverse effect on the subsequent processes (coating, etc.) of the battery collector electrode. At the same time, the protrusions are prone to generate metal dust, and metal dust is easy to cause damage to the battery. The first weld print and leveling component 2250 is arranged downstream of the first welding mechanism 250 and the second weld print and leveling component 2260 is arranged downstream of the second welding mechanism 280. This can ensure that the protrusions on the surface of the first finished material can be better handled before entering the glue coating, thereby reducing the possibility of damage to the battery in the later stage.

[0045] In one embodiment, reference Figure 7 , the first mounting portion 110 includes a fourth mounting portion 111 and a fifth mounting portion 112 spliced ​​together; The first unwinding mechanism 210, the second unwinding mechanism 220, the third unwinding mechanism 230, the slitting mechanism 240, the first welding mechanism 250, the first belt connection assembly 290, the first tension assembly 2200, the first deviation correction assembly 2210, the first driving assembly 2220, the second tension assembly 2230, the second deviation correction assembly 2240, and the first welding and printing flattening assembly 2250 are arranged on the fourth mounting portion 111; the fourth unwinding mechanism 260, the fifth unwinding mechanism 270, the second welding mechanism 280, the second welding and printing flattening assembly 2260, and the dust removal assembly 2270 are arranged on the The fifth mounting part 112 can be understood that if the membrane material only needs to weld the first A-side foil material and the first B-side foil material on the first side in the production line, the fifth mounting part 112 can be removed from the production line. Since the fourth mounting part 111 and the fifth mounting part 112 are spliced, and the fourth unwinding mechanism 260, the fifth unwinding mechanism 270, the second welding mechanism 280, the second welding and printing leveling component 2260, and the dust removal component 2270 are arranged on the fifth mounting part 112, when the fifth mounting part 112 is removed from the production line, the mechanism arranged on the fifth mounting part 112 is also removed, and the update of the production line can be completed at a faster speed. Similarly, if it is necessary to weld the second A-side foil material and the second B-side foil material on the second side of the membrane material, the fifth mounting part 112 can be connected to the production line at this time. It should be noted that, when there is only the fourth mounting part 111 but no fifth mounting part 112 in the production line, the dust removal component 2270 can be set in the fourth mounting part 111 or in the third mounting part 130. Further, if the first mounting part 110 includes the fourth mounting part 111 and the fifth mounting part 112 connected to each other, the first unwinding mechanism 210, the second unwinding mechanism 220, the third unwinding mechanism 230, the slitting mechanism 240, the first welding mechanism 250, the first tape connection component 290, the first tension component 2200, the first deviation correction component 2210, the first driving component 2220, the second tension component 2230, the second deviation correction component 2240, the first welding and printing leveling component 2250, the fourth unwinding mechanism 260 The fifth unwinding mechanism 270, the second welding mechanism 280, the second welding print leveling assembly 2260 are arranged on the fourth mounting part 111, and the dust removal assembly 2270 is arranged on the fifth mounting part 112. At this time, if the second welding mechanism 280 needs to be removed from the production line, it is only necessary to remove the fifth mounting part 112 from the production line. Since the fourth unwinding mechanism 260 is arranged on the fourth mounting part 111, it is only necessary to disassemble the fourth unwinding mechanism 260 separately, or not to use the fourth unwinding mechanism 260. Whether the fourth unwinding mechanism 260 is disassembled or not will not affect the use of the production line.

[0046] In one embodiment, reference Figure 2 , Figure 5 , Figure 6 The frame 100 is provided with a sixth transport path 190, which is provided on the second mounting portion 120 and the third mounting portion 130. The head end of the sixth transport path 190 is placed on the second mounting portion 120 and can receive the first finished material outputted from the end of the first transport path 140. The end of the sixth transport path 190 is placed on the third mounting portion 130, wherein the sixth transport path 190 includes a plurality of transport rollers 20. It can be understood that the sixth transport path 190 is divided into two connected sections, one of which is provided on the second mounting portion 120 and the other end is provided on the third mounting portion 130. The gluing mechanism 300 includes a first gluing component 310 and a second gluing component 320 provided in the sixth transport path 190, wherein the first gluing component 310 is used to apply glue to the A side of the first finished material, and the second gluing component 320 is used to apply glue to the B side of the first finished material, wherein the first gluing component 310 and the second gluing component 320 adopt a tunnel structure. Further, in some embodiments, if the second mounting portion 120 is spliced ​​with the first mounting portion 110 and the third mounting portion 130, the third tension component 500, the second drive component 600, the fourth tension component 40, the third deviation correction component 700, and the fourth deviation correction component 800 can be set in the sixth transport path 190, and the third tension component 500 is set downstream of the dust removal component 2270, wherein the second drive component 600 is set downstream of the third tension component 500, and the fourth tension component 40 is set at the second drive component 600. Downstream, the third deviation-correcting component 700 is arranged downstream of the fourth tension component 40, the first glue-coating component 310 is arranged downstream of the third deviation-correcting component 700, the fourth deviation-correcting component 800 is arranged downstream of the first glue-coating component 310, and the second glue-coating component 320 is arranged downstream of the fourth deviation-correcting component 800. It can be understood that under the action of the third deviation-correcting component 700 and the fourth deviation-correcting component 800, the first finished material can enter the first glue-coating component 310 and the second glue-coating component 320 with good position accuracy, thereby ensuring the quality of glue coating. Further, part of the structure in the sixth transport path 190 can be installed on the second mounting portion 120, for example, the third tension component 500 and the second drive component 600 are installed on the second mounting portion 120.

[0047] Further, the sixth transport path 190 is also provided with a second detection component 330 and a third detection component 340, wherein the second detection component 330 and the third detection component 340 are both configured as CCD cameras, wherein the second detection component 330 is arranged upstream of the first gluing component 310, wherein the second detection component 330 is arranged downstream of the fourth correcting component 800, and the third detection component 340 is arranged downstream of the second gluing component 320, and the first finished material will be detected by the second detection component 330 before entering the first gluing component 310. The material output by the first gluing component 310 will be detected by the second detection component 330 before entering the second gluing component 320, and its position accuracy will be fed back to the correcting component, specifically, the second detection component 330 is electrically connected to the third correcting component 700, and the third detection component 340 is electrically connected to the fourth correcting component 800. The second detection component 330 and the third detection component 340 are configured as visual detection components, specifically, the visual detection component includes a CCD camera.

[0048] In one embodiment, reference Figure 2 , Figure 5, the second installation part 120 is provided with a seventh transport path 1100, and the second finished material is input into the seventh transport path 1100 through the head end of the seventh transport path 1100, wherein the seventh transport path 1100 includes a plurality of transport rollers 20. The winding mechanism 30 is provided at the end of the seventh transport path 1100. Further, in some embodiments, if the second installation part 120 is spliced ​​with the first installation part 110 and the third installation part 130, the third drive assembly 900 and the fifth tension assembly 10 can be provided in the sixth transport path 190, the third drive assembly 900 is provided downstream of the second glue coating assembly 320, and the fifth tension assembly 10 is provided downstream of the third drive assembly 900 and upstream of the winding mechanism 30. Furthermore, the modular production line also includes a detection labeling component 400, and the detection labeling component 400 includes a detection module 410 and a labeling module 420. The detection module 410 is arranged downstream of the second welding and printing flattening component 2260 and upstream of the dust removal component 2270, and the labeling module 420 is arranged upstream of the winding mechanism 30 and downstream of the dust removal component 2270. Further, in some embodiments, there are two labeling modules 420, namely a first labeling module 421 and a second labeling module 422, wherein the first labeling module 421 is installed on the second installation part 120, and the second labeling module 422 is installed on the third installation part 130, and the second installation part 120 is spliced ​​with the first installation part 110 and the third installation part 130. In this way, if the production line When the gluing mechanism 300 needs to be removed, the second labeling module 422 is taken out from the production line along with the third mounting part 130, but the first labeling module 421 is arranged in the second mounting part 120, and the first labeling module 421 can still be retained in the production line, thereby ensuring the normal operation of the detection labeling component 400; it can be understood that if the gluing mechanism 300 is arranged in the production line, the first labeling module 421 is installed on the second mounting part 120, and the second labeling module 422 is installed on the third mounting part 130; at the same time, if the gluing mechanism 300 is removed, the sixth transport path 190 is located at a section of the second mounting part 120, and can be directly connected to the seventh transport path 1100, so that the production line can still operate normally after the gluing mechanism 300 is removed. Further, the detection module 410 is configured as a visual detection module, specifically, the visual detection module includes a CCD camera, wherein the labeling module 420 can stick a colored label on the finished material, and when the detection module 410 detects that the weld print in the finished material is unqualified, it generates a corresponding electrical signal and feeds the electrical signal back to the labeling module 420. At this time, the labeling module 420 labels the unqualified finished material. In this way, when the finished material is subsequently processed, if the staff finds the label, they can cut and discard the part of the finished material where the label is attached.At the same time, by detecting the labeling component 400, the modular production line itself can also be inspected. When the number of labels on the finished material is large, it can indirectly reflect that the welding mechanism or the welding and printing flattening component in the modular production line has an abnormality. At this time, the maintenance personnel can inspect the welding mechanism or the welding and printing flattening component. It can be understood that the label is attached to the finished material by bonding. Further, in one embodiment, the detection module 410 is configured as two, and the two detection modules 410 respectively detect the A side and the B side of the first finished material.

[0049] Further, in some embodiments, reference Figure 2 , Figure 5 , Figure 6 The seventh transport path 1100 is further provided with a second belt connecting assembly 50, which is arranged above the winding mechanism 30 and below the first labeling module 421. Furthermore, the winding mechanism 30 is arranged downstream of the second belt connecting assembly 50. The second belt connecting assembly is arranged downstream of the fifth tension assembly 10.

[0050] Furthermore, in some embodiments, in order to cooperate with the use of the correction component arranged in the first transport path 140, a first detection component 2280 is also provided on the production line, wherein the first detection component is configured in multiple numbers and is respectively arranged close to the correction component. It should be noted that the first detection component is used to detect whether the material is offset during transportation. If an offset occurs, it is promptly fed back to the corresponding correction component, and the correction component performs correction adjustments to the transportation trajectory of the material.

[0051] The present invention also proposes a battery current collector pole piece production process. The battery current collector pole piece production process is applied to a modular production line. The specific structure of the modular production line refers to the above embodiment. Since the battery current collector pole piece production process adopts all the technical solutions of the above embodiment, it has all the beneficial effects brought by the technical solutions of the above embodiment, which will not be repeated here one by one.

[0052] In one embodiment, reference Figure 8 , the battery current collector electrode production process includes: S10, the first unwinding mechanism 210 unwinds the diaphragm material, the diaphragm material moves along the first transport path 140 and enters the first welding mechanism 250, the second unwinding mechanism 220 unwinds the first A-side foil material, the first A-side foil material moves along the second transport path 150 and enters the first welding mechanism 250, the third unwinding mechanism 230 unwinds the first B-side foil material, the first B-side foil material moves along the third transport path 160 and enters the first welding mechanism 250, the first welding mechanism 250 welds the first A-side foil material and the first B-side foil material to the first side of the diaphragm material; S20, the material processed by the first welding mechanism 250 moves along the first transport path 140 and enters the second welding mechanism 280, the fourth unwinding mechanism 260 unwinds the second A-side foil material, the second A-side foil material enters the second welding mechanism 280 along the fourth transport path 170, the fifth unwinding mechanism 270 unwinds the second B-side foil material, the second B-side foil material enters the second welding mechanism 280 along the fifth transport path 180, the second welding mechanism 280 welds the second A-side foil material and the second B-side foil material to the second side of the diaphragm material, and the first finished product material can be output at the end of the first transport path 140; S30, the sixth transport path 190 receives the first finished material, the first finished material moves along the sixth transport path 190, the gluing mechanism 300 glues the first finished material, and the end of the sixth transport path 190 can output a second finished material; S40, the seventh transport path 1100 receives the second finished material, the second finished material moves along the seventh transport path 1100, and the winding mechanism 30 winds the second finished material.

[0053] It should be noted that the modular production line for the battery collector electrode production process is provided with a first mounting part 110, a second mounting part 120 and a third mounting part 130, that is, the modular production line is provided with an unwinding welding unit 200, a gluing mechanism 300, a winding mechanism 30 and other components arranged on the transportation path. It should be noted that the above process can facilitate the assembly and disassembly of the production line by coordinating the spliced ​​first mounting part 110, the second mounting part 120 and the third mounting part 130, and can also improve production efficiency. It should be noted that if the production line does not have a gluing mechanism 300, the above step S30 can be omitted.

[0054] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A modular production line, characterized in that: include: A frame, the frame comprising a first mounting portion, a second mounting portion, and a third mounting portion that are spliced ​​together; An unwinding and welding unit is installed on the first installation portion, and the unwinding and welding unit can unwind and weld the material and output the first finished product material; A gluing mechanism, disposed downstream of the unwinding and welding unit and mounted on the third mounting portion, the gluing mechanism being capable of receiving the first finished material, gluing it, and outputting a second finished material; and a winding mechanism, which is arranged downstream of the gluing mechanism and installed on the second installation portion, and the winding mechanism can wind up the second finished material.

2. The modular production line according to claim 1, characterized in that: The second mounting portion is spliced ​​with the first mounting portion and the third mounting portion.

3. The modular production line according to claim 2, characterized in that: The first installation portion is provided with a first transport path, a second transport path, and a third transport path; The unwinding and welding unit comprises a first unwinding mechanism arranged at the head end of the first transport path, a second unwinding mechanism arranged at the head end of the second transport path, a third unwinding mechanism arranged at the head end of the third transport path, a slitting mechanism arranged in the first transport path, and a first welding mechanism, wherein the slitting mechanism is arranged downstream of the first unwinding mechanism, the first welding mechanism is arranged downstream of the slitting mechanism, the ends of the second transport path and the third transport path can be connected to the first transport path, and the ends of the second transport path and the third transport path are arranged downstream of the slitting mechanism and upstream of the first welding mechanism; The first unwinding mechanism is used for placing the diaphragm material, and the diaphragm material can move along the first transport path; The second unwinding mechanism is used for placing the first A-side foil material, and the first A-side foil material can move along the second transport path; The third unwinding mechanism is used for placing the first B-side foil material, and the first B-side foil material can move along the third transport path; The diaphragm material is provided with a first side and a second side, the first side and the second side are arranged opposite to each other, the first welding mechanism can weld the first A-side foil material and the first B-side foil material to the first side of the diaphragm material, and the end of the first transport path can output the first finished material.

4. The modular production line according to claim 3, characterized in that: The first installation portion is provided with a fourth transport path and a fifth transport path; The unwinding and welding unit further comprises a fourth unwinding mechanism disposed at the head end of the fourth transport path, a fifth unwinding mechanism disposed at the head end of the fifth transport path, and a second welding mechanism disposed in the first transport path, wherein the second welding mechanism is disposed downstream of the first welding mechanism, and the ends of the fourth transport path and the fifth transport path can be connected to the first transport path, and the ends of the fourth transport path and the fifth transport path are disposed downstream of the first welding mechanism and upstream of the second welding mechanism; The fourth unwinding mechanism is used for placing the second A-side foil material, and the second A-side foil material can move along the fourth transport path; The fifth unwinding mechanism is used for placing the second B-side foil material, and the second B-side foil material can move along the fifth transport path; The second welding mechanism can weld the second A-side foil material and the second B-side foil material to the second side of the diaphragm material, and the end of the first transport path can output a first finished product material.

5. The modular production line according to claim 4, characterized in that: The second transport path and the fourth transport path are arranged on one side of the first transport path; The third transport path and the fifth transport path are arranged on the other side of the first transport path.

6. The modular production line according to claim 5, characterized in that: The unwinding and welding unit further includes a first belt splicing assembly, a first tension assembly, a first deviation correcting assembly, a first driving assembly, a second tension assembly, a second deviation correcting assembly, a first welding and printing leveling assembly, a second welding and printing leveling assembly, and a dust removal assembly arranged in the first transport path; The first belt connecting assembly is arranged downstream of the first unwinding mechanism and above the first unwinding mechanism, the first tension assembly is arranged downstream of the first belt connecting assembly and above the first belt connecting assembly, the first deviation correcting assembly is arranged downstream of the first tension assembly and upstream of the slitting mechanism and above the first belt connecting assembly, the first driving assembly is arranged downstream of the slitting mechanism, the second tension assembly is arranged downstream of the first driving assembly and below the first driving assembly, the second deviation correcting assembly is arranged downstream of the second tension assembly and upstream of the first welding mechanism, the first welding and printing flattening assembly is arranged downstream of the first welding mechanism and upstream of the second welding mechanism, the second welding and printing flattening assembly is arranged downstream of the second welding mechanism, and the dust removal assembly is arranged downstream of the second welding mechanism.

7. The modular production line according to claim 6, characterized in that: The first mounting portion includes a fourth mounting portion and a fifth mounting portion that are spliced ​​together; The first unwinding mechanism, the second unwinding mechanism, the third unwinding mechanism, the slitting mechanism, the first welding mechanism, the first tape splicing assembly, the first tension assembly, the first deviation correcting assembly, the first driving assembly, the second tension assembly, the second deviation correcting assembly, and the first welding and printing leveling assembly are arranged on the fourth mounting portion; The fourth unwinding mechanism, the fifth unwinding mechanism, the second welding mechanism, the second welding and printing leveling assembly, and the dust removal assembly are arranged on the fifth mounting portion.

8. The modular production line according to claim 7, characterized in that: The frame is provided with a sixth transport path, the sixth transport path is provided at the second mounting portion and the third mounting portion, the head end of the sixth transport path is placed at the second mounting portion, and is capable of receiving the first finished material outputted from the end of the first transport path, and the end of the sixth transport path is placed at the third mounting portion; The gluing mechanism comprises a first gluing component and a second gluing component arranged in the sixth transport path, the first gluing component is used to apply glue to the A surface of the first finished material, and the second gluing component is used to apply glue to the B surface of the first finished material; The sixth transport path is also provided with a second detection component and a third detection component. The second detection component is provided upstream of the first gluing component, and the third detection component is provided upstream of the second gluing component and downstream of the first gluing component.

9. The modular production line according to claim 8, characterized in that: The second installation portion is provided with a seventh transport path, and the second finished material is input into the seventh transport path through the head end of the seventh transport path; The reeling mechanism is disposed at the end of the seventh transport path; The modular production line also includes a detection and labeling component, which includes a detection module and a labeling module. The detection module is arranged downstream of the second welding and printing and leveling component and upstream of the dust removal component, and the labeling module is arranged upstream of the winding mechanism and downstream of the dust removal component.

10. A battery current collector electrode production process, applied to a modular production line, wherein the modular production line is the modular production line according to claim 9, characterized in that: The battery current collector electrode production process comprises: The first unwinding mechanism unwinds the diaphragm material, the diaphragm material moves along the first transport path and enters the first welding mechanism, the second unwinding mechanism unwinds the first A-side foil material, the first A-side foil material moves along the second transport path and enters the first welding mechanism, the third unwinding mechanism unwinds the first B-side foil material, the first B-side foil material moves along the third transport path and enters the first welding mechanism, and the first welding mechanism welds the first A-side foil material and the first B-side foil material to the first side of the diaphragm material; The material processed by the first welding mechanism moves along the first transport path and enters the second welding mechanism. The fourth unwinding mechanism unwinds the second A-side foil material, and the second A-side foil material enters the second welding mechanism along the fourth transport path. The fifth unwinding mechanism unwinds the second B-side foil material, and the second B-side foil material enters the second welding mechanism along the fifth transport path. The second welding mechanism welds the second A-side foil material and the second B-side foil material to the second side of the diaphragm material. The first finished material can be output at the end of the first transport path. The sixth transport path receives the first finished material, the first finished material moves along the sixth transport path, the gluing mechanism glues the first finished material, and the end of the sixth transport path can output a second finished material; The seventh transport path receives the second finished material, the second finished material moves along the seventh transport path, and the winding mechanism winds the second finished material.

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