Full-automatic blanking production line for welding copper-aluminum foil soft row

Abstract

The utility model provides a copper aluminum foil soft row welding full-automatic blanking production line, which comprises a strip cutting device and a blanking device, the blanking device comprises a stacking device and a pre-welding device, the stacking device comprises a material placing table, a cutting device and a feeding device, and the pre-welding device comprises a material receiving table, a vibration device, a welding device, a pressing device and an auxiliary material device. The strip cutting device cuts a raw material copper-aluminum foil roll into a plurality of copper-aluminum foil strips along the rolling direction of the raw material copper-aluminum foil roll, the cutting device cuts off the plurality of copper-aluminum foil strips, the plurality of cut copper-aluminum foil strips are respectively stacked on the receiving table in parallel, and the copper-aluminum foil strips are stacked repeatedly to form a plurality of copper-aluminum foil flexible rows, namely copper-aluminum foil flexible row groups. The two ends of each copper-aluminum foil flexible bar of the copper-aluminum foil flexible bar group are welded and fixed, the plurality of copper-aluminum foil flexible bars are fixed together through the nickel sheets to form the copper-aluminum foil flexible bar group, and when the copper-aluminum foil flexible bars are welded by high-molecular diffusion welding, the plurality of copper-aluminum foil flexible bars are welded at the same time, so that the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of copper-aluminum foil flexible busbar production, in particular to a full-automatic blanking production line for copper-aluminum foil flexible busbar welding. Background Art

[0002] Copper-aluminum foil flexible busbars are composed of multiple layers of copper foil or aluminum foil stacked together, with both ends welded by polymer diffusion welding. Copper-aluminum foil flexible busbars are widely used in electrical, communication, energy and other fields due to their high conductivity, good flexibility, tensile strength and corrosion resistance.

[0003] During the production of traditional copper-aluminum foil rectifier busbars, copper-aluminum foil strips of the required width are first purchased, cut and stacked according to production requirements, nickel sheets are placed on both ends of the stacked copper-aluminum foils and clamped with clips. The strips are then transported to the polymer diffusion welding station for welding. Since the copper-aluminum foil rectifier busbars are separated one by one, only one strip can be welded at a time, resulting in very low production efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a fully automatic blanking production line for copper-aluminum foil flexible bar welding to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fully automatic blanking production line for copper-aluminum foil soft-row welding, comprising a strip cutting device and a blanking device, the blanking device comprising a stacking device and a pre-welding device, the stacking device comprising a discharge table, a cutting device and a feeding device, the pre-welding device comprising a receiving table, a vibration device, a welding device, a pressing device, and an auxiliary material device, the cutting device is located on one side of the discharge table, the cutting device comprises a feed roller group and a cutting knife, the feeding device is located above the discharge table, the feeding device comprises a movable frame and a picking device, the movable frame is fixedly installed with the picking device, the picking device comprises a support plate, a slide rod, and a chuck, the support plate is fixedly installed with a first cylinder and a second cylinder, the first cylinder drives the connecting slide rod, and the second cylinder drives the connecting chuck.

[0006] Preferably, the unloading table is fixedly provided with a first separating comb.

[0007] Preferably, the pressing device is fixedly mounted with a third cylinder, the third cylinder is drivingly connected to a pressure rod, and the pressure rod is located above the material receiving platform.

[0008] Preferably, a second material separation comb is fixedly installed on the top of the material receiving platform, and the vibration device is located beside the material receiving platform.

[0009] Preferably, the welding method of the welding device is laser welding, and the welding device is located beside the material receiving platform.

[0010] Preferably, the auxiliary material device includes a support plate, a knife gate and an auxiliary material feeding device. The support plate is provided with a nickel sheet discharge trough and a copper-aluminum foil discharge trough. The support plate is fixedly installed with a fourth cylinder, and the fourth cylinder drives the connection knife gate. The pre-welding device is located above the material receiving platform and the support plate and is equipped with an auxiliary material picking and placing device.

[0011] Preferably, a material buffer device is provided between the strip cutting device and the material unloading device.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model uses a strip cutting device to cut the raw material copper and aluminum foil roll into multiple copper and aluminum foil strips along the winding direction, and then feeds it into a feeding device. The multiple copper and aluminum foil strips are pulled, fed and cut by the cutting device of the stacking device. The cutting device cuts multiple copper and aluminum foil strips at the same time according to the preset length. The material connection table is located on one side of the cutting device. The multiple copper and aluminum foil strips after being cut are stacked in parallel on the material connection table. This is repeated many times to form multiple copper and aluminum foil strips stacked to form multiple copper and aluminum foil soft strips, that is, copper and aluminum foil soft strip groups. The number of layers of the stacked copper and aluminum foil strips is preset according to production requirements. The copper and aluminum foil soft strip groups with the laid copper and aluminum foil strips are fed by the feeding device. The device takes it and transports it to the pre-welding device, and places the two ends of the copper-aluminum foil flexible busbar group on the unloading table respectively. The auxiliary material device places nickel sheets and auxiliary copper-aluminum foil sheets on both ends of the copper-aluminum foil flexible busbar group. The vibration device flattens the two ends of the copper-aluminum foil flexible busbar group. The pressing device presses the two ends of the copper-aluminum foil flexible busbar group. The welding device is started to weld and fix the two ends of each copper-aluminum foil flexible busbar of the copper-aluminum foil flexible busbar group. The nickel sheet connects multiple copper-aluminum foil flexible busbars together, so that multiple copper-aluminum foil flexible busbars are fixed together to form a copper-aluminum foil flexible busbar group. When using polymer diffusion welding to weld the copper-aluminum foil flexible busbars, multiple copper-aluminum foil flexible busbars can be welded at the same time to improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the first perspective structural view of the present invention.

[0015] Figure 2 This is the second perspective structural view of the present invention.

[0016] Figure 3 This is the first perspective structural view of the blanking device of the utility model.

[0017] Figure 4 This is a second perspective structural view of the blanking device of the utility model.

[0018] Figure 5 This is the first perspective structural view of the pre-welding device of the utility model.

[0019] Figure 6 This is a second perspective structural view of the pre-welding device of the present invention.

[0020] Figure 7 This is the first perspective structural view of the material receiving table of the utility model.

[0021] Figure 8 This is the second perspective structural view of the material receiving table of the utility model.

[0022] Figure 9 This is the first perspective structural view of the auxiliary material device of the utility model.

[0023] Figure 10 This is a second perspective structural view of the auxiliary material device of the present invention.

[0024] Figure 11 It is a structural view of the material taking device of the present utility model.

[0025] Figure 12 This is the first perspective structural view of the cutting device of the utility model.

[0026] Figure 13 This is a second perspective structural view of the cutting device of the utility model.

[0027] Markings in the figure: slitting device 1, unloading device 2, stacking device 3, pre-welding device 4, discharge table 5, cutting device 6, feeding device 7, receiving table 8, vibrating device 9, welding device 10, pressing device 11, auxiliary material device 12, feed roller group 13, cutting knife 14, movable frame 15, material taking device 16, supporting plate 17, sliding rod 18, chuck 19, first cylinder 20, second cylinder 21, first material separating comb 22, third cylinder 23, pressure rod 24, second material separating comb 25, support plate 26, gate knife 27, auxiliary material feeding device 28, nickel sheet discharge trough 29, copper and aluminum foil discharge trough 30, fourth cylinder 31, auxiliary material taking and placing device 32, material buffer device 33. DETAILED DESCRIPTION

[0028] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0029] The copper-aluminum foil in this article refers to copper foil or aluminum foil.

[0030] Example 1:

[0031] like Figures 1-13As shown, the fully automatic blanking production line for copper-aluminum foil soft bar welding provided by the utility model includes a slitting device 1 and a blanking device 2. The blanking device 2 includes a stacking device 3 and a pre-welding device 4. The stacking device 3 includes a discharge table 5, a cutting device 6 and a feeding device 7. The pre-welding device 4 includes a receiving table 8, a vibration device 9, a welding device 10, a pressing device 11, and an auxiliary material device 12. The cutting device 6 is located on one side of the discharge table 5. The cutting device 6 includes a feed roller group 13 and a cutting knife 14. The feeding device 7 is located above the discharge table 5. The feeding device 7 includes a movable frame 15 and a picking device 16. The movable frame 15 is fixedly installed with the picking device 16. The picking device 16 includes a supporting plate 17, a slide bar 18, and a chuck 19. The supporting plate 17 is fixedly installed with a first cylinder 20 and a second cylinder 21. The first cylinder 20 drives the connecting slide bar 18, and the second cylinder 21 drives the connecting chuck 19. The discharge table 5 is fixedly installed with a first material separation comb 22. The clamping device 11 is fixedly installed with a third cylinder 23, and the third cylinder 23 is driven and connected to a pressure rod 24, and the pressure rod 24 is located above the receiving platform 8. A second material separation comb 25 is fixedly installed on the top of the receiving platform 8, and the vibration device 9 is located next to the receiving platform 8. The welding method of the welding device 10 is laser welding, and the welding device 10 is located next to the receiving platform 8. The auxiliary material device 12 includes a support plate 26, a knife gate 27 and an auxiliary material feeding device 28. The support plate 26 is provided with a nickel sheet discharge trough 29 and a copper-aluminum foil discharge trough 30. The support plate 26 is fixedly installed with a fourth cylinder 31, and the fourth cylinder 31 is driven and connected to the knife gate 27. The pre-welding device 4 is located above the receiving platform 8 and the support plate 26 and is equipped with an auxiliary material picking and placing device 32. A material buffer device 33 is provided between the slitting device 1 and the unloading device 2.

[0032] Through the above technical solution, the utility model cuts the raw material copper and aluminum foil roll into multiple copper and aluminum foil strips through the strip cutting device 1 along the winding direction, and then feeds it into the unloading device 2. The multiple copper and aluminum foil strips are pulled, fed and cut by the cutting device 6 of the stacking device 3. The cutting device 6 cuts multiple copper and aluminum foil strips at the same time according to the preset length. The material receiving platform 8 is located on one side of the cutting device 6. The multiple copper and aluminum foil strips after being cut are stacked in parallel on the material receiving platform 8. This is repeated many times to form multiple copper and aluminum foil strips stacked to form multiple copper and aluminum foil soft strips, that is, copper and aluminum foil soft strip groups. The number of layers of stacked copper and aluminum foil strips is preset according to production requirements, and the copper and aluminum foil soft strip groups that have been pasted are The feeding device 7 takes the copper-aluminum foil bus bar group and transports it to the pre-welding device 4, and the two ends of the copper-aluminum foil bus bar group are respectively placed on the discharge table 55, and the auxiliary material device 12 places nickel sheets and auxiliary copper-aluminum foil sheets on the two ends of the copper-aluminum foil bus bar group. The vibration device 9 flattens the two ends of the copper-aluminum foil bus bar group, and the pressing device 11 presses the two ends of the copper-aluminum foil bus bar group. The welding device 10 is started to weld and fix the two ends of each copper-aluminum foil bus bar of the copper-aluminum foil bus bar group. The nickel sheet connects multiple copper-aluminum foil bus bars together, so that multiple copper-aluminum foil bus bars are fixed together to form a copper-aluminum foil bus bar group. When using polymer diffusion welding to weld the copper-aluminum foil bus bars, multiple copper-aluminum foil bus bars are welded at the same time to improve production efficiency.

[0033] Example 2:

[0034] like Figures 1-13 As shown, the fully automatic copper-aluminum foil flexible busbar welding production line is a highly efficient automated equipment developed to improve the production efficiency of copper-aluminum foil flexible busbars. The line consists of multiple functional modules, including a slitting device 1 and a blanking device 2. First, the raw copper-aluminum foil roll is cut by the slitting device 1. The cut copper-aluminum foil strips are further stacked and welded during the production process.

[0035] The main function of the strip cutting device 1 is to cut the copper-aluminum foil roll into multiple copper-aluminum foil strips according to the set width. During this process, the strip cutting device 1 cuts along the direction of the copper-aluminum foil roll. After the strip cutting is completed, the multiple copper-aluminum foil strips will be simultaneously fed into the unloading device 2.

[0036] The unloading device 2 includes a stacking device 3 and a pre-welding device 4. The stacking device 3 is composed of a discharge table 5, a cutting device 6 and a feeding device 7. At this stage, the multiple copper and aluminum foil strips cut by the strip cutting device 1 are pulled into the cutting device 6. The cutting device 6 controls the pulling length of each copper and aluminum foil strip through the pulling system to ensure that the length of the copper and aluminum foil strip cut each time is consistent with the preset value. When the length of the copper and aluminum foil strip reaches the preset standard, the cutting device 6 cuts the multiple copper and aluminum foil strips at the same time. The multiple copper and aluminum foil strips that are pulled and cut are stacked and laid on the discharge table 5 in an orderly manner. This process is repeated many times, and the number of repetitions is a preset value, which is used to control the number of copper and aluminum foil layers of the copper and aluminum foil soft bus to meet different needs, and the stacked copper and aluminum foil strips form a complete copper and aluminum foil soft bus (a semi-finished product, and the finished product needs to be welded by polymer diffusion welding).

[0037] As multiple copper-aluminum foil strips are stacked simultaneously, multiple copper-aluminum foil riblets, or riblet groups, are formed on the unloading platform 5. This stacking method significantly improves production efficiency and facilitates subsequent polymer diffusion welding. As the riblet groups are formed, the feeding device 7 begins operation. It first clamps the ends of the riblet group and then transports it to the pre-welding device 4 for subsequent processing.

[0038] The functional modules of the pre-welding device 4 include a receiving table 8, a vibrating device 9, a welding device 10, a pressing device 11, and an auxiliary material device 12. The pre-welding device 4 is symmetrically arranged, capable of processing both ends of the copper-aluminum foil flexible busbar group simultaneously to improve overall welding efficiency. In the pre-welding device 4, the auxiliary material device 12 first places a nickel sheet on the receiving table 8. Then, the feeding device 7 places the two ends of the copper-aluminum foil flexible busbar group on two receiving tables 8 (the pre-welding device 4 is arranged symmetrically).

[0039] After completing the above process, the auxiliary material device 12 will place a piece of auxiliary copper-aluminum foil on top of the copper-aluminum foil flexible busbar group. Since the polymer diffusion welding will squeeze the welding part (two ends) of the copper-aluminum foil flexible busbar during welding, and the thickness of the two ends of the copper-aluminum foil flexible busbar must be produced according to specifications, but during welding, if the extrusion pressure is too large, the thickness of the two ends of the copper-aluminum foil flexible busbar will not meet the production specifications. If the extrusion pressure is too small, the welding effect of the two ends of the copper-aluminum foil flexible busbar will deteriorate. Placing a piece of auxiliary copper-aluminum foil on both ends of the copper-aluminum foil flexible busbar can increase the extrusion force during welding and meet the production specifications of the thickness of the two ends of the copper-aluminum foil flexible busbar at the same time. Subsequently, the feeding device 7 will return to the stacking device 3, take another set of copper-aluminum foil flexible busbar groups, and stack them on the auxiliary copper-aluminum foil sheet again. At this time, the auxiliary material device 12 will place another nickel sheet on the copper-aluminum foil flexible busbar group to complete the stacking operation process of the copper-aluminum foil flexible busbar group (the length and width of the nickel sheet and the auxiliary copper-aluminum foil sheet are the same and equal to the width of the copper-aluminum foil flexible busbar group. The nickel sheet is used to connect each group of copper-aluminum foil flexible busbars, so that multiple groups of copper-aluminum foil flexible busbars form an integral copper-aluminum foil flexible busbar group, which is convenient for subsequent polymer diffusion welding processing).

[0040] The vibrating device 9 and the pressing device 11 are started simultaneously. The pressing device 11 cooperates with the vibrating device 9, that is, the pressing device 11 is intermittently loosened to facilitate the vibrating device 9 to flatten the copper-aluminum foil flexible busbar assembly. The pressing device 11 cooperates with the vibrating device 9 to flatten the ends of the copper-aluminum foil flexible busbar assembly to provide a flat welding surface for subsequent welding. The pressing device 11 plays a very important role in this process. By applying appropriate pressure, it ensures that the copper-aluminum foil flexible busbar assembly and the auxiliary copper-aluminum foil sheets and nickel sheets are tightly fitted during the welding process.

[0041] The welding device 10 is then activated, welding the sides of each copper-aluminum foil busbar in the copper-aluminum foil busbar assembly, that is, welding vertically, welding each copper-aluminum foil sheet together (including the nickel sheet and the auxiliary copper-aluminum foil sheet). During the welding process, the bond between the nickel sheet, the auxiliary copper-aluminum foil sheet, and the copper-aluminum foil busbar is strengthened, making the three firmly connected. This welding method not only improves the strength of the overall structure, but also facilitates subsequent transportation and processing operations.

[0042] After welding is completed, the copper-aluminum foil flexible row group will enter the polymer diffusion welding machine for final welding.

[0043] Throughout the entire production line, an automated control system ensures the coordinated operation of every device. This system monitors the status of each production link in real time and adjusts operating parameters promptly to ensure optimal operation of the entire production line. Data collection and analysis capabilities are also integrated, enabling statistics and analysis of various data during the production process, helping managers make more accurate decisions.

[0044] This fully automated production line not only improves production efficiency but also significantly enhances the quality of copper-aluminum foil flexible busbars. By controlling every step, it effectively reduces the failure rate caused by human factors, ensuring that each batch of products meets high quality standards. Furthermore, the production line design simplifies equipment maintenance and servicing, reducing downtime during production and increasing overall production capacity.

[0045] The cutting device 6 of the present invention is located on one side of the unloading platform 5. The copper and aluminum foil strips cut by the cutting device 6 can be quickly stacked on the unloading platform 5, increasing the stacking speed of the copper and aluminum foil strips and improving production efficiency. The cutting device 6 mainly consists of a feed roller assembly 13 and a cutting knife 14. The feed roller assembly 13 is driven by a drive motor and is used to pull the copper and aluminum foil strips, allowing them to smoothly enter the cutting process. The feed roller assembly 13 has a precise length recording function, which can monitor the feed length of the copper and aluminum foil strips in real time to ensure accurate and consistent cutting. During the production process, the feed roller assembly 13 communicates with the control system in real time to accurately record the length of the copper and aluminum foil strips according to set standards and requirements. When the copper and aluminum foil strips pulled by the feed roller assembly 13 reach the predetermined length, the cutting device 6 automatically activates the cutting knife 14 to cut, ensuring production efficiency and cutting quality. During this process, the cutting knife 14 is powered by a drive cylinder to achieve fast and precise cutting action.

[0046] The feeding device 7 of the present invention is located above the unloading table 5, which is convenient for the feeding device 7 to pick up the copper-aluminum foil flexible bus group stacked on the unloading table 5. The structure of the feeding device 7 mainly includes a movable frame 15 and a picking device 16. The movable frame 15 is fixed with the picking device 16 and has a multi-axis moving function. The movable frame 15 adopts a three-axis moving device, which can realize horizontal movement and up and down movement. This function greatly improves the flexible operation of the picking device 16 in space. When the copper-aluminum foil flexible bus group is stacked on the unloading table 5, the picking device 16 is started to pick up the material. The picking device 16 consists of a supporting plate 17, a slide bar 18 and a chuck 19. The first cylinder 20 and the second cylinder 21 are fixedly installed on the supporting plate 17. The first cylinder 20 is connected to the slide bar 18 and is responsible for driving the horizontal movement of the slide bar 18. The second cylinder 21 is connected to the chuck 19 and is responsible for clamping the copper-aluminum foil flexible bus group. During the material picking process, the first cylinder 20 is first extended, and the material picking device 16 is inserted downward so that the slide bar 18 is lower than the bottom of the copper-aluminum foil flexible wire group. At this time, the first cylinder 20 will retract, and the slide bar 18 will pass through the bottom of the copper-aluminum foil flexible wire group and drag the copper-aluminum foil flexible wire group. Through this process, the slide bar 18 can drag and grasp the bottom of both ends of the copper-aluminum foil flexible wire group, preparing for the subsequent clamping operation. The second cylinder 21 is then started, driving the chuck 19 to press down, and the chuck 19 cooperates with the slide bar 18 to clamp the copper-aluminum foil flexible wire group. Since the material picking device 16 is symmetrically arranged, it can clamp both ends of the copper-aluminum foil flexible wire group at the same time. This clamping method can ensure that the copper-aluminum foil flexible wire group does not slide or fall during transportation, thereby ensuring stability when entering the pre-welding device 4. When the copper-aluminum foil flexible wire group is clamped, the feeding device 7 can start working. The mobile rack 15, using a three-axis motion mechanism, moves the clamped copper-aluminum foil flexible ribbon assembly from above the unloading table 5 to the pre-welding device 4. The design of the feeding device 7 significantly increases the automation level of the production line. This significantly reduces the need for manual operator intervention throughout the entire process, thereby improving the safety and stability of the production line. This entire feeding process not only improves production efficiency but also ensures the smooth execution of subsequent welding steps.

[0047] The unloading platform 5 of the present invention is fixedly installed with a first separating comb 22, which improves the processing efficiency of the copper-aluminum foil strips during the production process. The first separating comb 22 is used to separate the position of each copper-aluminum foil strip on the unloading platform 5, ensuring that confusion can be prevented when multiple copper-aluminum foil strips are processed at the same time. During the production process of the copper-aluminum foil strips, the cutting device 6 cuts multiple copper-aluminum foil strips into specified lengths at the same time and stacks them on the unloading platform 5 to form a stack of multiple copper-aluminum foil strips. By installing the first separating comb 22 on the unloading platform 5, multiple copper-aluminum foil strips are separated, ensuring that each copper-aluminum foil strip is arranged neatly and stacked in an orderly manner.

[0048] The clamping device 11 of the present invention is fixedly installed with a third cylinder 23, and the third cylinder 23 is connected to a pressure rod 24 by driving, and the pressure rod 24 is located above the receiving platform 8. The pre-welding device 4 adopts a symmetrical arrangement and can process both ends of the copper-aluminum foil flexible busbar group at the same time. The main function of the receiving platform 8 is to place the copper-aluminum foil flexible busbar group delivered by the feeding device 7 to prepare for subsequent welding operations. The two ends of the copper-aluminum foil flexible busbar group are respectively placed on the corresponding receiving platform 8 to maintain stability and precision during the welding process. In the operating process, the working principle of the clamping device 11 is: before the copper-aluminum foil flexible busbar group is placed on the receiving platform 8, the third cylinder 23 is first started to move the pressure rod 24 away to provide sufficient space for the feeding device 7 so that it can smoothly place the copper-aluminum foil flexible busbar group on the receiving platform 8. After completing the placement work, the third cylinder 23 is immediately started to move the pressure rod 24 back to its original position so that the pressure rod 24 is again located above the receiving platform 8. At this time, the pressing device 11 is activated, driving the pressure rod 24 to apply pressure downward to compress the copper-aluminum foil flexible wire group. In this way, the pressure rod 24 can firmly fix the copper-aluminum foil flexible wire group on the receiving table 8 to prevent it from any displacement or instability during the subsequent welding process.

[0049] The second material separation comb 25 is fixedly installed on the top of the material receiving platform 8 of the present invention. The setting of the second material separation comb 25 is similar to that of the first material separation comb 22. It is mainly used to separate multiple copper-aluminum foil strips to ensure that the copper-aluminum foil strips can be neatly arranged throughout the production process, reducing the intersection and confusion between materials, so that the operation of each copper-aluminum foil strip can be carried out without affecting other materials, thereby improving work efficiency and accuracy. The vibration device 9 is located on the side of the material receiving platform 8, and is mainly responsible for leveling the two ends of the copper-aluminum foil strip group by vibrating and beating, in preparation for subsequent welding and fixation. Under the operation of the vibration device 9, the vibration will generate a certain frequency, and the two ends of the copper-aluminum foil strip group will be quickly aligned through the uniform beating force.

[0050] The welding device 10 of the present invention utilizes laser welding. This welding method is highly efficient and high-quality, making it suitable for welding copper-aluminum foil riblets. The welding device 10 is positioned next to the material receiving platform 8 to facilitate welding of the copper-aluminum foil riblets placed on the receiving platform 8. Laser welding technology uses a high-energy laser beam to rapidly heat the welding material, causing it to melt and bond in a very short time. During the welding process, the laser beam is precisely aligned with the material being welded. The focused laser beam penetrates deeply into the material surface, forming a molten pool and effectively connecting the different materials. This is particularly important for welding copper-aluminum foil riblets, as high-quality welding directly affects the product's electrical conductivity and service life. The relative positioning of the welding device 10 and the material receiving platform 8 enables the laser welding operation to be carried out quickly. Before welding the copper-aluminum foil riblets, the operator can monitor and adjust the welding process in real time using an automated control system. This arrangement not only improves welding efficiency but also significantly reduces interference from human operators. In laser welding, the welding device 10 can significantly reduce the number of auxiliary materials required for welding. Compared to traditional welding processes, laser welding does not require the addition of welding wire or solder, further reducing costs. When welding copper-aluminum foil busbars, the solder-free nature of laser welding ensures a clean welding area and a neat board surface, enhancing the density and strength of the weld. This also improves the reliability and durability of the produced copper-aluminum foil busbars in subsequent use.

[0051] The auxiliary material device 12 of the present invention includes a support plate 26, a gate knife 27, and an auxiliary material feed device 28. The auxiliary material device 12 is primarily used to provide nickel sheets and auxiliary copper and aluminum foil sheets. The support plate 26 is equipped with a nickel sheet discharge trough 29 and a copper and aluminum foil discharge trough 30 for placing the required auxiliary materials and providing necessary support for the welding process. The support plate 26 is fixedly mounted with a fourth cylinder 31, which drives the gate knife 27 to cut the auxiliary materials when needed. During the production process, the welding of the copper and aluminum foil flexible busbar requires the placement of nickel sheets at both ends to improve the wear resistance and oxidation resistance of the copper and aluminum foil flexible busbar. Furthermore, the addition of auxiliary copper and aluminum foil sheets helps improve the welding quality of the copper and aluminum foil flexible busbar during the polymer diffusion welding stage. By increasing the extrusion force during welding, the weld strength is significantly enhanced, thereby ensuring the quality and reliability of the final product. During stacking, the auxiliary material feed device 28 is responsible for conveying the nickel sheets and auxiliary copper and aluminum foil sheets to the nickel sheet discharge trough 29 and the copper and aluminum foil discharge trough 30, respectively. Once the nickel sheet and auxiliary copper and aluminum foil are ready, the fourth cylinder 31 is activated, using its power to cut the nickel sheet and auxiliary copper and aluminum foil, facilitating subsequent loading and unloading operations. The auxiliary material loading and unloading device 32, mounted above the receiving platform 8 and the support plate 26, can operate on the nickel sheet discharge trough 29 and the copper and aluminum foil discharge trough 30. Based on production needs, the auxiliary material loading and unloading device 32 removes the required auxiliary material and places it on the receiving platform 8.

[0052] The present invention features a material buffer device 33 between the slitting device 1 and the unloading device 2. Its primary function is to buffer the copper and aluminum foil strips between the slitting device 1 and the unloading device 2. In actual production, the slitting device 1 and the unloading device 2 experience differences in their feeding and discharging rhythms. Generally, the slitting device 1 maintains a relatively uniform discharge speed, while the unloading device 2's feed speed fluctuates. To prevent the copper and aluminum foil strips from being torn apart due to inconsistent speeds, the material buffer device 33 is provided. This effectively addresses the issue of mismatched operating rhythms between the two devices. As the copper and aluminum foil strips cut by the slitting device 1 pass through the buffer device and enter the unloading device 2, the material buffer device 33 acts as a temporary storage area, facilitating the speed difference between the two devices. While the slitting device 1 is discharging the copper and aluminum foil strips, even if the unloading device 2 stops operating at some point, the material buffer device 33 maintains the continuity of the copper and aluminum foil strips, preventing breakage caused by forced pulling of the material. The coordinated operation of the material buffer device 33 stabilizes the entire production line, improving production efficiency. This not only reduces the failure rate caused by uncoordinated equipment operation, but also reduces waste caused by damaged materials. By rationally configuring the slitting device 1 and the unloading device 2, the material buffer device 33 ensures a stable working environment for smooth production operations.

[0053] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0054] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. The fully automatic blanking production line for copper and aluminum foil flexible bar welding includes a strip cutting device and a blanking device, which is characterized by: The unloading device includes a stacking device and a pre-welding device, the stacking device includes a discharge table, a cutting device and a feeding device, the pre-welding device includes a receiving table, a vibration device, a welding device, a pressing device, and an auxiliary material device, the cutting device is located on one side of the discharge table, the cutting device includes a feed roller group and a cutting knife, the feeding device is located above the discharge table, the feeding device includes a movable frame and a picking device, the movable frame is fixedly installed with the picking device, the picking device includes a supporting plate, a sliding rod, and a chuck, the supporting plate is fixedly installed with a first cylinder and a second cylinder, the first cylinder drives the connecting sliding rod, and the second cylinder drives the connecting chuck.

2. The fully automatic blanking production line for copper-aluminum foil flexible bar welding according to claim 1 is characterized in that: The unloading platform is fixedly provided with a first separating comb.

3. The fully automatic blanking production line for copper-aluminum foil flexible bar welding according to claim 1 is characterized in that: The pressing device is fixedly mounted with a third cylinder, and the third cylinder is drivingly connected to a pressure rod, and the pressure rod is located above the material receiving platform.

4. The fully automatic blanking production line for copper-aluminum foil flexible bar welding according to claim 1 is characterized in that: A second material separation comb is fixedly installed on the top of the material receiving platform, and the vibration device is located beside the material receiving platform.

5. The fully automatic blanking production line for copper-aluminum foil flexible bar welding according to claim 1 is characterized in that: The welding method of the welding device is laser welding, and the welding device is located beside the material receiving platform.

6. The fully automatic blanking production line for copper-aluminum foil flexible bar welding according to claim 1 is characterized in that: The auxiliary material device includes a support plate, a gate knife and an auxiliary material feeding device. The support plate is provided with a nickel sheet discharge trough and a copper and aluminum foil discharge trough. The support plate is fixedly installed with a fourth cylinder, and the fourth cylinder drives the gate knife. The pre-welding device is located above the material receiving platform and the support plate and is equipped with an auxiliary material picking and placing device.

7. The fully automatic blanking production line for copper-aluminum foil flexible bar welding according to claim 1 is characterized in that: A material buffer device is provided between the strip cutting device and the material unloading device.

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