A lamination machine diaphragm belt path system and lamination equipment

Abstract

The utility model discloses a kind of laminating machine diaphragm belt path system and laminating equipment, wherein, laminating machine diaphragm belt path system includes the diaphragm unwinding module being set along the conveying path of diaphragm, diaphragm tension detection module, diaphragm first tension module, diaphragm driving module, diaphragm second tension module, diaphragm buffer module and diaphragm swing arm module, diaphragm unwinding module and diaphragm driving module are all with independent driving force;The laminating equipment includes the laminating machine diaphragm belt path system and laminating table module.This kind of laminating machine diaphragm belt path system and laminating equipment can effectively solve the technical problems existing in prior art, such as long diaphragm belt path, large diaphragm tension fluctuation, prominent diaphragm jitter, diaphragm prone to wrinkle due to uneven tension, large product safety hazard, etc., improve production efficiency and product quality, and application experience is better.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production, and in particular to a diaphragm belt system and stacking equipment for a stacking machine. Background Technology

[0002] With the development and popularization of the new energy industry, the demand, output, and quality requirements for lithium batteries are becoming increasingly stringent. Among the manufacturing processes of lithium batteries, the lamination process is a crucial one. In the lamination process of the lithium battery industry, the stable transport of the separator is vital for battery performance and production efficiency. However, the traditional separator belt layout in lamination machines has many problems, posing significant challenges to production.

[0003] Large fluctuations in separator tension during the lamination process have long been a problem plaguing the industry. During the unwinding process, various factors make it difficult to precisely control the separator tension, leading to significant fluctuations. This not only affects the lamination accuracy between the separator and electrode sheets but can also cause inconsistencies in the tightness of the stack, thus impacting battery performance indicators such as internal resistance and capacity.

[0004] Meanwhile, the diaphragm retrieval vibration problem during the movement of the diaphragm swing arm is also quite prominent. In the traditional layout, the diaphragm's transport path from the unwinding mechanism to the stacking table is relatively long. When the diaphragm swing arm retracts the diaphragm, this long-distance transport can easily cause instability, resulting in diaphragm vibration. This vibration not only reduces the stability and consistency of the stacking but may also cause diaphragm wrinkles, increasing the defect rate in production.

[0005] Furthermore, wrinkles frequently occur in the separator during stacking due to uneven surface tension. The long transport path makes it difficult for the tension on the separator to be evenly distributed during transport; excessive or insufficient local tension leads to wrinkles on the separator surface. These wrinkles not only affect the separator's isolation effect on the electrode plates but may also cause safety hazards such as short circuits during battery charging and discharging.

[0006] In summary, existing lithium battery stacking processes suffer from problems such as long separator paths, large separator tension fluctuations, significant separator vibration, and easy wrinkling of the separator due to uneven tension, which seriously affect the quality of battery products and production efficiency.

[0007] Against this technological backdrop, there is an urgent need for an innovative technical solution to address the aforementioned issues and improve the stability of the stacking process and the quality of battery products. Utility Model Content

[0008] In order to overcome the shortcomings of the existing technology, this utility model provides a diaphragm belt system and stacking equipment for a stacking machine, which effectively solves the technical problems existing in the prior art, such as long diaphragm belt, large diaphragm tension fluctuation, prominent diaphragm vibration, easy wrinkling of diaphragm due to uneven tension, and great product safety hazards.

[0009] The technical solution adopted by this utility model to solve its technical problem is:

[0010] A diaphragm conveyor system for a stacking machine includes a diaphragm unwinding module, a diaphragm tension detection module, a first diaphragm tension module, a diaphragm drive module, a second diaphragm tension module, a diaphragm buffer module, and a diaphragm swing arm module along the diaphragm conveying path. The diaphragm unwinding module and the diaphragm drive module each have independent driving forces. The diaphragm drive module divides the diaphragm conveying path into a first part and a second part. The first tension module controls the tension of the diaphragm in the first part of the diaphragm conveying path, and the second tension module controls the tension of the diaphragm in the second part of the diaphragm conveying path.

[0011] As a further improvement to the above technical solution, along the conveying path of the diaphragm, a diaphragm static elimination module is provided between the diaphragm tension detection module and the diaphragm first tension module, and the diaphragm static elimination module has two sets and is distributed on both sides of the diaphragm.

[0012] As a further improvement to the above technical solution, a diaphragm splicing module is provided between the diaphragm unwinding module and the diaphragm tension detection module along the diaphragm conveying path.

[0013] As a further improvement to the above technical solution, the diaphragm drive module includes a first support, a second support, and a guide rail mounting plate disposed between the first support and the second support. A rotatable drive roller is also disposed between the first support and the second support. A drive assembly is disposed on the outside of the first support or the second support. The output end of the drive assembly is connected to one end of the drive roller and is used to drive the drive roller to rotate. A pressure roller guide rail and a pressure roller drive cylinder are disposed on the guide rail. A pressure roller parallel to the drive roller is disposed on the pressure roller guide rail. The output end of the pressure roller drive cylinder is directly or indirectly connected to the pressure roller and is used to drive the pressure roller to move on the pressure roller guide rail.

[0014] As a further improvement to the above technical solution, a pressure roller slide is provided on the pressure roller guide rail, a pressure roller mounting seat is provided on the pressure roller slide, and both ends of the pressure roller are rotatably mounted on the pressure roller mounting seat through bearings. The pressure roller drive cylinder is fixedly connected to the pressure roller slide or the pressure roller mounting seat through a floating connecting block.

[0015] As a further improvement to the above technical solution, the drive roller is installed between the first support and the second support via a bearing and a bearing housing.

[0016] As a further improvement to the above technical solution, the drive assembly includes a servo motor, a reducer, and a coupling. The output end of the servo motor is connected to the input end of the reducer, and the output end of the reducer is connected to one end of the drive roller through the coupling.

[0017] As a further improvement to the above technical solution, the diaphragm belt system of the stacking machine also includes diaphragm transition rollers disposed between each module.

[0018] This utility model also provides:

[0019] A stacking device, the stacking device including the stacking machine diaphragm belt system, and also including a stacking table module for use in conjunction with it.

[0020] As a further improvement to the above technical solution, the stacking equipment also includes an electrode stacking mechanism, which includes a positive electrode stacking mechanism and a negative electrode stacking mechanism.

[0021] The beneficial effects of this utility model are as follows: This utility model provides a diaphragm belt system and stacking equipment for a stacking machine. This diaphragm belt system and stacking equipment are equipped with a diaphragm drive module and a second diaphragm tension module. The diaphragm drive module divides the entire diaphragm belt into two parts. This technical solution has the following advantages:

[0022] 1. Improved stacking quality: By synchronizing the unwinding module and the driving module, the tension during the unwinding process of the diaphragm is precisely controlled, effectively solving the problem of large tension fluctuations in the diaphragm during the stacking process. This ensures stable tension of the diaphragm during transmission, thereby greatly improving the stacking quality and ensuring the consistency and stability of battery performance indicators such as internal resistance and capacity.

[0023] 2. Ensuring Stacking Process Stability: Dividing the diaphragm belt into two parts significantly shortens the diaphragm length between the diaphragm drive module and the stacking stage module, successfully eliminating the jitter problem that occurs during diaphragm recovery when the diaphragm swing arm module moves during stacking. The shorter transmission path reduces instability factors, allowing the diaphragm to remain stable during recovery, further ensuring the stability of the stacking process and reducing the stacking defect rate caused by diaphragm jitter;

[0024] 3. Improve product quality: The design of shortening the diaphragm length from the diaphragm drive module to the stacking stage module effectively avoids wrinkles caused by uneven surface tension of the diaphragm during stacking; the shorter transmission path helps to distribute the surface tension of the diaphragm more evenly, improves the flatness of the diaphragm during the stacking process, thereby improving the quality of the final product and reducing safety hazards such as battery short circuits that may be caused by diaphragm wrinkles.

[0025] 4. Optimized diaphragm transmission and tension control: The innovative addition of a diaphragm drive module and a second diaphragm tension module to the diaphragm belt, along with the unique design that divides the diaphragm belt into two parts, fundamentally optimizes the transmission and tension control of the diaphragm during the lamination process, laying a solid foundation for the stable and efficient operation of the lamination equipment.

[0026] In summary, this type of stacking machine diaphragm belt system and stacking equipment effectively solves the technical problems existing in the prior art, such as long diaphragm belt, large diaphragm tension fluctuation, prominent diaphragm vibration, easy wrinkling of the diaphragm due to uneven tension, and significant product safety hazards. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Figure 1 This is a schematic diagram of the assembly of the diaphragm belt system of the stacking machine in this utility model;

[0029] Figure 2 This is another assembly diagram of the diaphragm belt system of the stacking machine in this utility model;

[0030] Figure 3 This is a schematic diagram of the assembly of the diaphragm belt system of the stacking machine in this utility model from the third angle;

[0031] Figure 4 This is an assembly diagram of the diaphragm drive module in this utility model;

[0032] Figure 5 This is another assembly diagram of the diaphragm drive module in this utility model. Detailed Implementation

[0033] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be interactively combined and referenced without contradicting each other. Figure 1-5 .

[0034] Specific reference Figure 1 , Figure 2 , Figure 3 This utility model provides:

[0035] A diaphragm conveyor system for a stacking machine includes, along the conveying path of the diaphragm 10, a diaphragm unwinding module 1, a diaphragm splicing module 11, a diaphragm tension detection module 2, a diaphragm first tension module 3, a diaphragm static eliminator module 21, a diaphragm drive module 4, a diaphragm second tension module 5, a diaphragm buffer module 6, and a diaphragm swing arm module 7. The diaphragm unwinding module 1 and the diaphragm drive module 4 each have independent driving forces. In application, the diaphragm unwinding module 1 and the diaphragm drive module 4 can simultaneously provide driving forces to the diaphragm 10, thereby preventing the diaphragm 10 from passing only through the diaphragm unwinding module. The diaphragm drive module 4 divides the conveying path of the diaphragm 10 into a first part and a second part. The first tension module 3 is used to control the tension of the diaphragm 10 in the first part of the conveying path, and the second tension module 5 is used to control the tension of the diaphragm 10 in the second part of the conveying path. A diaphragm transition roller 8 is also provided between each module.

[0036] In this technical solution, a diaphragm driving module 4 is provided, which divides the transmission path of the diaphragm 10 into two parts, and has the following advantages:

[0037] 1. Solving the tension fluctuation problem of the laminated diaphragm 10: By synchronizing the operation of the diaphragm unwinding module 1 and the diaphragm drive module 4, this layout effectively overcomes the industry-wide problem of large tension fluctuations in the diaphragm 10 during the lamination process. The reasonable setting of the diaphragm drive module 4 enables precise control of the tension during the unwinding process of the diaphragm 10. Working in synergy with the diaphragm drive module 4, it ensures the tension stability of the diaphragm 10 during transmission, greatly improving the lamination quality. This also enables rapid preheating of the battery cells, shortens the battery cell heating time, and increases the production capacity of the battery cell hot pressing section.

[0038] 2. Eliminating Diaphragm 10 jitter: By dividing the diaphragm 10 conveyor path into two segments, the length of the diaphragm 10 between the diaphragm drive module 4 and the stacking stage module 9 is significantly shortened. This optimized design successfully solves the jitter problem that occurs during the diaphragm 10 retrieval process as the diaphragm swing arm module 7 moves during stacking. The shorter diaphragm transmission path reduces instability caused by excessive distance, allowing the diaphragm 10 to remain stable during retrieval, further ensuring the stability of the stacking process.

[0039] 3. Preventing wrinkles in diaphragm 10: Also based on the design of shortening the diaphragm length from diaphragm drive module 4 to stacking stage module 9, the problem of wrinkles caused by uneven surface tension in diaphragm 10 during stacking is effectively solved. The shorter transmission path helps to distribute the surface tension of diaphragm 10 more evenly, avoiding wrinkles caused by excessive or insufficient local tension, thereby improving the flatness of diaphragm 10 during the stacking process and enhancing the quality of the final product.

[0040] In summary, the diaphragm belt layout of the stacking machine provided by this utility model, with its innovative design of adding a diaphragm drive module 4 and a second diaphragm tension module 5 to the diaphragm belt and dividing it into two sections, successfully solves a series of key problems such as large tension fluctuations, diaphragm vibration, and diaphragm wrinkles during the stacking process, providing a strong guarantee for the efficient and stable operation of the stacking equipment and the production of high-quality stacked wafers.

[0041] In some embodiments, the diaphragm antistatic module 21 has two sets distributed on both sides of the diaphragm 10. The diaphragm antistatic module 21 eliminates static electricity in the diaphragm, ensuring product quality and safety. The diaphragm splicing module 11 is a manual splicing module.

[0042] Reference Figure 4 , Figure 5In some embodiments, the diaphragm drive module 4 includes a first support 411, a second support 412, and a guide rail mounting plate 42 disposed between the first support 411 and the second support 412. A rotatable drive roller 43 is also disposed between the first support 411 and the second support 412. A drive assembly 44 is disposed on the outside of the first support 411 or the second support 412. The output end of the drive assembly 44 is connected to one end of the drive roller 43 and is used to drive the drive roller 43 to rotate. A pressure roller guide rail 45 and a pressure roller drive cylinder 46 are disposed on the guide rail 42. A pressure roller 47 parallel to the drive roller 43 is disposed on the pressure roller guide rail 45. The output end of the pressure roller drive cylinder 46 is directly or indirectly connected to the pressure roller 47 and is used to drive the pressure roller 47 to move on the pressure roller guide rail 45. Specifically, a pressure roller slide 451 is provided on the pressure roller guide rail 45, and a pressure roller mounting seat 471 is provided on the pressure roller slide 451. The two ends of the pressure roller 47 are rotatably mounted on the pressure roller mounting seat 471 through bearings. The pressure roller drive cylinder 46 is fixedly connected to the pressure roller slide 451 or the pressure roller mounting seat 471 through a floating connecting block 461. The drive roller 43 is mounted between the first support 411 and the second support 412 through bearings and bearing seats 431. The drive assembly 44 includes a servo motor, a reducer, and a coupling. The output end of the servo motor is connected to the input end of the reducer, and the output end of the reducer is connected to one end of the drive roller 43 through the coupling.

[0043] In application, the diaphragm drive module 4 firstly drives the pressure roller 47 away from the drive roller 43, creating a gap between them. The diaphragm 10 then passes through this gap. After passing through the gap, the pressure roller drive cylinder 46 drives the pressure roller 47 to press against the drive roller 43, thus pressing the diaphragm 10 firmly against the outer wall of the drive roller 43. The pressure applied by the pressure roller 47 to the diaphragm 10 is determined according to the actual needs of the diaphragm, ensuring that the diaphragm 10 does not slip due to the rotation of the drive roller 43 after being pressed against it, thereby providing driving force to the diaphragm 10.

[0044] In some embodiments, the diaphragm unwinding module 1 includes a diaphragm unwinding drive motor and a diaphragm unwinding shaft. The diaphragm unwinding shaft is connected to the output end of the diaphragm unwinding drive motor. When the diaphragm 10 is unwinding, the diaphragm unwinding drive motor actively unwinds the diaphragm through the diaphragm unwinding shaft.

[0045] Reference Figure 1-3 Based on the aforementioned diaphragm conveyor system for the stacking machine, this utility model also provides:

[0046] A stacking device includes the stacking machine diaphragm belt system, and also includes a stacking stage module 9 and an electrode stacking mechanism, wherein the electrode stacking mechanism includes a positive electrode stacking mechanism and a negative electrode stacking mechanism.

[0047] The workflow of the technical solution provided by this utility model is as follows:

[0048] The diaphragm roll is mounted on the diaphragm unwinding shaft. The diaphragm unwinding drive motor in the diaphragm unwinding module 1 drives the diaphragm unwinding shaft to perform diaphragm unwinding, thereby bringing the diaphragm 10 into the diaphragm splicing module 11 for manual diaphragm splicing. After the diaphragm 10 comes out of the diaphragm splicing module 11, it is transferred through the first diaphragm transition roller 8 to the diaphragm tension detection module 2. The diaphragm tension detection module detects, records, and feeds back the tension of the diaphragm 10 during its travel to the system. After the diaphragm 10 is detected by the diaphragm tension detection module 2, it passes between the second and third diaphragm transition rollers 8. The diaphragm antistatic module 21 then performs antistatic treatment on this section of the diaphragm. The signal is then transmitted to the first tension module 3, which controls the tension of the diaphragm section after unwinding. The diaphragm conveyor belt, adjusted and controlled by the first tension module 3, is then transported via the diaphragm transition rollers 8 to the diaphragm drive module 4, thus ensuring the diaphragm... The tension of the diaphragm 10 conveyor belt between the unwinding shaft and the diaphragm drive module 4 is maintained stably and precisely. Further, the diaphragm 10 conveyor belt exiting the diaphragm drive module 4 is transferred to the diaphragm second tension module 5. The diaphragm 10 conveyor belt from the diaphragm second tension module 5 is then transferred via the diaphragm transition roller 8 to the diaphragm buffer module 6. The diaphragm buffer module 6 buffers the diaphragm 10 before stacking. Finally, the diaphragm swing arm module 7 pulls the diaphragm buffer module 6. The buffered diaphragm 10 is placed on the stacking stage module 9 and participates in the stacking process. When the stacking stage module 9 has enough diaphragms, the diaphragm 10 is pulled back. The second tension module 5 of the diaphragm can cooperate with the diaphragm buffer module 6 to ensure the continuous stability of the diaphragm belt during the pull-back of the diaphragm 10, avoiding a series of situations such as diaphragm 10 shaking. As a result, the tension of the diaphragm 10 belt between the diaphragm drive module 4 and the stacking stage module 9 can be kept stable and precisely controlled.

[0049] In the above technical solution, under the synergistic effect of the above modules, during the process from unwinding the diaphragm 10 to stacking the diaphragm on the stacking table module 9, whether the diaphragm 10 is unwinding or pulling back, it can more effectively and stably transmit and complete the specific process with high precision. This avoids the occurrence of problems such as diaphragm wrinkles and unevenness caused by unstable diaphragm tension, shaking, and fluctuation, thus ensuring high-quality stacking production.

[0050] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A diaphragm conveyor system for a stacking machine, characterized in that: Along the conveying path of the diaphragm (10), there are a diaphragm unwinding module (1), a diaphragm tension detection module (2), a diaphragm first tension module (3), a diaphragm driving module (4), a diaphragm second tension module (5), a diaphragm buffer module (6), and a diaphragm swing arm module (7). The diaphragm unwinding module (1) and the diaphragm driving module (4) each have independent driving force. The diaphragm driving module (4) divides the conveying path of the diaphragm (10) into a first part and a second part. The first tension module (3) is used to control the tension of the diaphragm (10) in the first part of the conveying path of the diaphragm (10), and the second tension module (5) is used to control the tension of the diaphragm (10) in the second part of the conveying path of the diaphragm (10).

2. The diaphragm conveyor system for a stacking machine according to claim 1, characterized in that: Along the conveying path of the diaphragm (10), a diaphragm static elimination module (21) is provided between the diaphragm tension detection module (2) and the diaphragm first tension module (3). The diaphragm static elimination module (21) has two sets and is distributed on both sides of the diaphragm (10).

3. The diaphragm conveyor system for a stacking machine according to claim 1, characterized in that: Along the conveying path of the diaphragm (10), a diaphragm splicing module (11) is provided between the diaphragm unwinding module (1) and the diaphragm tension detection module (2).

4. The diaphragm conveyor system for a stacking machine according to claim 1, characterized in that: The diaphragm drive module (4) includes a first support (411), a second support (412), and a guide rail mounting plate (42) disposed between the first support (411) and the second support (412). A rotatable drive roller (43) is also disposed between the first support (411) and the second support (412). A drive assembly (44) is disposed on the outside of the first support (411) or the second support (412). The output end of the drive assembly (44) is connected to one end of the drive roller (43) and is used to drive the drive roller (43) to rotate. A pressure roller guide rail (45) and a pressure roller drive cylinder (46) are disposed on the guide rail mounting plate (42). A pressure roller (47) parallel to the drive roller (43) is disposed on the pressure roller guide rail (45). The output end of the pressure roller drive cylinder (46) is directly or indirectly connected to the pressure roller (47) and is used to drive the pressure roller (47) to move on the pressure roller guide rail (45).

5. The diaphragm conveyor system for a stacking machine according to claim 4, characterized in that: The pressure roller guide rail (45) is provided with a pressure roller slide (451), and the pressure roller slide (451) is provided with a pressure roller mounting seat (471). The two ends of the pressure roller (47) are rotatably mounted on the pressure roller mounting seat (471) through bearings. The pressure roller drive cylinder (46) is fixedly connected to the pressure roller slide (451) or the pressure roller mounting seat (471) through a floating connecting block (461). The drive roller (43) is installed between the first support (411) and the second support (412) via a bearing and a bearing housing (431).

6. The diaphragm conveyor system for a stacking machine according to claim 4, characterized in that: The drive assembly (44) includes a servo motor, a reducer and a coupling. The output end of the servo motor is connected to the input end of the reducer, and the output end of the reducer is connected to one end of the drive roller (43) through the coupling.

7. A diaphragm conveyor system for a stacking machine according to any one of claims 1-6, characterized in that: It also includes a diaphragm transition roller (8) disposed between each module.

8. A stacking device, characterized in that: The stacking equipment includes the stacking machine diaphragm belt system as described in any one of claims 1-7, and also includes a stacking table module (9) used in conjunction with it.

9. A stacking device according to claim 8, characterized in that: The stacking equipment also includes an electrode stacking mechanism, which includes a positive electrode stacking mechanism and a negative electrode stacking mechanism.

Images