Tension detection device of lithium battery automatic sheet making machine

Abstract

The utility model discloses a tension detection device of an automatic lithium battery sheet making machine, which comprises a mounting plate, two groups of guide rollers are arranged on the mounting plate, and a tension detection mechanism is arranged between the two groups of guide rollers. A roller type tension sensor is used for detecting the tension borne by a pole piece in real time, the sensor is usually installed on a key point of a pole piece transmission path and can accurately measure the tension borne by the pole piece in the movement process, and when the tension detected by the sensor is too high or too low, a signal can be immediately transmitted to a controller; the controller can control the alarm to give an alarm to remind a worker to adjust the tension of the sheet making machine, so that the automation level of the lithium battery sheet making machine is improved, and the safety and stability of the production process are also remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of film-making machine technology, and more specifically, to a tensile testing device for an automatic lithium battery film-making machine. Background Technology

[0002] As a key piece of equipment in modern low-temperature lithium battery production, the fully automated lithium battery sheet-making machine's design and functionality are crucial for improving production efficiency and battery quality. This machine typically comprises several core components, including a feeding mechanism, a welding mechanism, an adhesive-applying mechanism, a finished product processing mechanism, electrical components, and multiple traction mechanisms that control the movement of the electrode sheets during their transport. The feeding mechanism is responsible for extracting the electrode material from the roll and conveying it to subsequent processing stations.

[0003] During electrode transfer, the lack of a tension detection mechanism means that excessive tension, especially for thinner electrodes or those with weak coatings, can cause them to break. This not only wastes materials but can also lead to production stoppages, impacting the efficiency and output of the entire production line. Furthermore, excessive tension can cause coating peeling or delamination, severely affecting the battery's electrochemical performance, potentially increasing internal resistance, reducing capacity, and even posing safety hazards. Conversely, insufficient tension can cause wrinkles or irregular deformation of the electrode. These seemingly minor issues directly impact the quality of subsequent stacking or winding. Wrinkles or deformation during stacking or winding can destabilize the battery's internal structure, affecting capacity and lifespan. Worse still, these defects can cause short circuits, posing serious safety risks. Currently, no effective solutions have been proposed to address these technical problems. Utility Model Content

[0004] In view of the problems in related technologies, this utility model proposes a tensile testing device for an automatic lithium battery sheet making machine to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows:

[0006] A tensile testing device for an automatic lithium battery sheet making machine includes a mounting plate, a guide roller on the mounting plate, two sets of guide rollers, and a tensile testing mechanism between the two sets of guide rollers.

[0007] Furthermore, in order to detect the tensile force during the transport of the electrode sheets and ensure the electrode sheet manufacturing effect, the tensile force detection mechanism includes a fixed plate located on one side of the mounting plate, a connecting seat located below the fixed plate, a roller tension sensor connected to the connecting seat, the roller tension sensor being electrically connected to the controller, and a fixing mechanism located on the fixed plate.

[0008] Furthermore, to facilitate the disassembly, maintenance, and cleaning of the measuring roller, the fixing mechanism includes a fixing groove on the fixing plate, one end of the connecting seat passes through the fixing groove and is placed at the top of the fixing plate, the connecting seat is provided with a slot, and a locking block is engaged inside the slot, the locking block being connected to the drive mechanism.

[0009] Furthermore, in order to drive the card block to move and fix the card block to the connecting seat, the driving mechanism includes a drive motor mounted on the fixed plate, the output end of the drive motor is connected to a gear, both sides of the gear mesh with a toothed plate, and one end of the toothed plate is connected to the card block.

[0010] Furthermore, a limiting groove is provided on the outer side of the toothed plate, the limiting groove is fixedly connected to the fixing plate, and a mounting seat is provided above the limiting groove, the mounting seat is fixedly connected to the drive motor.

[0011] Furthermore, a limiting plate is provided inside the card slot, and the limiting plate is fixedly connected to the connecting seat.

[0012] Furthermore, the controller is fixedly connected to the mounting plate, and an alarm is installed on the controller, which is electrically connected to the controller.

[0013] The beneficial effects of this utility model are as follows:

[0014] (1) By setting up a tension detection mechanism, the tension of the electrode sheet can be detected in real time during the transportation process using a roller tension sensor. This sensor is usually installed at key points in the electrode sheet transmission path and can accurately measure the tension borne by the electrode sheet during movement. When the tension detected by the sensor is too high or too low, the signal will be immediately transmitted to the controller. The controller can control the alarm to sound an alarm and remind the staff to adjust the tension of the electrode sheet making machine, thereby improving the automation level of the lithium battery electrode sheet making machine and significantly improving the safety and stability of the production process. It can also effectively avoid problems such as electrode sheet breakage, coating peeling or electrode sheet deformation caused by improper tension, thereby ensuring the high quality and consistency of low temperature batteries.

[0015] (2) By setting up a fixing mechanism and a driving mechanism, the installation and disassembly of the roller tension sensor becomes more convenient and efficient. The roller tension sensor can be fixed by placing the card block inside the card slot, which can ensure that the sensor is stable and does not move when working. At the same time, it can be quickly removed when needed to facilitate regular calibration and maintenance of the sensor. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view of a tensile testing device for an automatic lithium battery sheet-making machine according to an embodiment of the present utility model.

[0018] Figure 2 This is a side view of a tensile testing device for an automatic lithium battery sheet-making machine according to an embodiment of the present invention.

[0019] Figure 3 This is a structural diagram of a tensile testing device for an automatic lithium battery sheet making machine according to an embodiment of the present invention.

[0020] Figure 4 This is a structural diagram of the drive mechanism of a tensile testing device for an automatic lithium battery sheet-making machine according to an embodiment of the present utility model.

[0021] In the picture:

[0022] 1. Mounting plate; 2. Guide roller; 3. Tensile testing mechanism; 301. Fixing plate; 302. Connecting seat; 303. Roller tension sensor; 304. Controller; 4. Fixing mechanism; 401. Fixing groove; 402. Slot; 403. Slot; 5. Drive mechanism; 501. Drive motor; 502. Gear; 503. Gear plate; 6. Limiting groove; 7. Mounting seat; 8. Limiting plate; 9. Alarm. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] According to an embodiment of the present invention, a tensile testing device for an automatic lithium battery sheet forming machine is provided.

[0025] Example 1

[0026] like Figures 1-4As shown, the tensile testing device of the automatic lithium battery sheet-making machine according to an embodiment of the present invention includes a mounting plate 1, on which guide rollers 2 are provided. There are two sets of guide rollers 2, and a tensile testing mechanism 3 is provided between the two sets of guide rollers 2. The tensile testing mechanism 3 includes a fixing plate 301 located on one side of the mounting plate 1, and a connecting seat 302 located below the fixing plate 301. A roller tension sensor 303 is connected to the connecting seat 302. This roller tension sensor 303 uses the Swiss FMS IMGZ series roller tension sensor. The roller tension sensor 303 is connected to the controller. 304 Electrical connection: When the electrode runs between the two sets of guide rollers 2, it bypasses the roller tension sensor mounted on the connecting seat 302; the electrode tension acts on the roller, generating a force perpendicular to the roller axis; this force is transmitted through the bearing to the internally integrated strain gauge or piezoelectric element, causing a change in the electrical signal; the sensor converts this mechanical signal into a standard electrical signal and transmits it to the controller 304 in real time. The fixing plate 301 is provided with a fixing mechanism 4, which includes a fixing groove 401 on the fixing plate 301. One end of the connecting seat 302 passes through the fixing groove 401 and is placed on the fixing plate. At the top of 301, the connecting seat 302 has a slot 402, and a locking block 403 is engaged inside the slot 402. One end of the locking block 403 is triangular. The locking block 403 is connected to the drive mechanism 5. The drive mechanism 5 includes a drive motor 501 mounted on the fixed plate 301. The output end of the drive motor 501 is connected to a gear 502. Both sides of the gear 502 mesh with a toothed plate 503. One end of the toothed plate 503 is connected to the locking block 403. A limiting groove 6 is provided on the outer side of the toothed plate 503. The limiting groove 6 is fixedly connected to the fixed plate 301. By setting the limiting groove 6, the toothed plate 503 is secured. For stability of movement, a mounting base 7 is provided above the limiting groove 6, and the mounting base 7 is fixedly connected to the drive motor 501. A limiting plate 8 is provided inside the slot 402, and the limiting plate 8 is fixedly connected to the connecting base 302. By setting the limiting plate 8, which is triangular, the movement distance of the card block 403 can be limited. During the movement of the card block 403, the limiting plate 8 can control the movement range of the card block 403 and ensure the fixing effect of the card block 403. The controller 304 is fixedly connected to the mounting plate 1, and an alarm 9 is provided on the controller. The alarm 9 is electrically connected to the controller 304.

[0027] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0028] In practical applications, when using a electrode fabrication machine to fabricate low-temperature lithium batteries, the electrode sheets are transported via guide rollers 2, and the tension on the electrode sheets is detected in real time by roller tension sensors 303. These sensors are typically installed at key points along the electrode sheet transport path and can accurately measure the tension experienced by the electrode sheet during movement. When the sensor detects excessively high or low tension, the signal is immediately transmitted to controller 304. Controller 304 then activates alarm 9 to alert operators to adjust the tension of the electrode fabrication machine. Furthermore, it can be used to calibrate and inspect the roller tension sensors 303 when necessary. During repair, the drive motor 501 can be started to rotate the toothed plate 503, causing the toothed plate 503 to move and move away from the slot 402, thus rendering the fixing effect on the connecting seat 302 ineffective. This allows the roller tension sensor 303 to be disassembled. When it is necessary to reinstall the roller tension sensor 303, the connecting seat 302 can be placed inside the fixing slot 401, and then the drive motor 501 can be started in reverse to move the toothed plate 403 inside the slot 402, thus fixing the connecting seat 302 and fixing the roller tension sensor 303.

[0029] In summary, by utilizing the above-mentioned technical solution of this utility model, and by setting up the tension detection mechanism 3, the tension on the electrode sheet can be detected in real time during the transportation process using the roller tension sensor 303. This allows for accurate measurement of the tension borne by the electrode sheet during movement. When the tension detected by the roller tension sensor 303 is too high or too low, the signal is immediately transmitted to the controller 304. The controller 304 can then control the alarm 9 to sound an alarm, reminding the staff to adjust the tension of the electrode sheet making machine. This improves the automation level of the lithium battery electrode sheet making machine and significantly enhances the safety and stability of the production process. It can effectively avoid problems such as electrode breakage, coating peeling or electrode deformation caused by improper tension, thereby ensuring the high quality and consistency of low temperature batteries. In addition, by setting the fixing mechanism 4 and the driving mechanism 5, the installation and removal of the roller tension sensor 303 becomes more convenient and efficient. The roller tension sensor 303 can be fixed by placing the card block 403 inside the card slot 402, which can ensure that the sensor is stable and does not move when working. At the same time, it can be quickly removed when needed to facilitate the regular calibration and maintenance of the sensor.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tensile testing device for an automatic lithium battery sheet-making machine, characterized in that, It includes a mounting plate (1), on which guide rollers (2) are provided. The number of guide rollers (2) is two sets, and a tension detection mechanism (3) is provided between the two sets of guide rollers (2).

2. The tensile testing device for an automatic lithium battery sheet-making machine according to claim 1, characterized in that, The tensile testing mechanism (3) includes a fixing plate (301) located on one side of the mounting plate (1), a connecting seat (302) located below the fixing plate (301), a roller tension sensor (303) connected to the connecting seat (302), the roller tension sensor (303) being electrically connected to the controller (304), and a fixing mechanism (4) located on the fixing plate (301).

3. The tensile testing device for an automatic lithium battery sheet-making machine according to claim 2, characterized in that, The fixing mechanism (4) includes a fixing groove (401) on the fixing plate (301), one end of the connecting seat (302) passes through the fixing groove (401) and is placed at the top of the fixing plate (301), the connecting seat (302) is provided with a slot (402), a card block (403) is engaged inside the slot (402), and the card block (403) is connected to the driving mechanism (5).

4. The tensile testing device for an automatic lithium battery sheet-making machine according to claim 3, characterized in that, The drive mechanism (5) includes a drive motor (501) mounted on a fixed plate (301). The output end of the drive motor (501) is connected to a gear (502). Both sides of the gear (502) mesh with a toothed plate (503). One end of the toothed plate (503) is connected to a locking block (403).

5. The tensile testing device for an automatic lithium battery sheet-making machine according to claim 4, characterized in that, The toothed plate (503) has a limiting groove (6) on its outer side. The limiting groove (6) is fixedly connected to the fixing plate (301). The limiting groove (6) has a mounting seat (7) above it. The mounting seat (7) is fixedly connected to the drive motor (501).

6. The tensile testing device for an automatic lithium battery sheet-making machine according to claim 3, characterized in that, The slot (402) is provided with a limiting plate (8), which is fixedly connected to the connecting seat (302).

7. The tensile testing device for an automatic lithium battery sheet-making machine according to claim 2, characterized in that, The controller (304) is fixedly connected to the mounting plate (1), and the controller (304) is equipped with an alarm (9), which is electrically connected to the controller (304).

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