Battery pole piece heat sealing device

Abstract

The utility model discloses a battery pole piece heat sealing device, which comprises a heat sealing mechanism, a conveying mechanism and a moving mechanism, the heat sealing mechanism comprises an upper sealing head, a lower sealing head, a driving assembly and a plurality of heating pipes, the upper sealing head and the lower sealing head are arranged oppositely and at intervals, and the plurality of heating pipes are respectively connected with the upper sealing head and the lower sealing head. The driving assembly is used for driving the upper sealing head and the lower sealing head to clamp and press a battery and an aluminum-plastic film, the heating pipe is used for heat-sealing a tab of the battery, the conveying mechanism is used for conveying the aluminum-plastic film between the upper sealing head and the lower sealing head, and the moving mechanism is used for placing the battery into a punching pit of the aluminum-plastic film. The utility model aims to solve the technical problems of insufficient automation level and low production efficiency of soft package battery packaging equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery pole piece heat sealing technical field especially relates to a battery pole piece heat sealing device. BACKGROUND

[0002] With the continuous development of new energy technology, soft package battery as an important battery type, because of its lightweight, high energy density, flexible structure and other advantages, is widely used in new energy vehicles, energy storage systems and consumer electronic products.

[0003] In the manufacturing process of soft package battery, packaging is a crucial link. Usually, the packaging work is completed by aluminum plastic film and other materials, which not only plays a protective role, but also can improve the overall stability of the battery. Packaging usually occurs after the positive and negative electrodes and the battery cell assembly are completed. The assembled battery cell needs to be sealed by heat sealing process to seal the aluminum plastic film and each interface part of the battery cell, so as to ensure that the battery can effectively prevent the entry of air, moisture, impurities and other in the use process, and thus improve the performance and safety of the battery.

[0004] However, most of the current soft package battery production equipment still has certain deficiencies in the degree of automation. Although the existing technology can realize the automation of some links in the battery packaging process, part of the process still depends on manual intervention, resulting in low degree of automation of the packaging process, and it is difficult to ensure the consistency of the packaging quality, and the production efficiency and yield are also greatly affected.

[0005] Therefore, the soft package battery packaging equipment has the problems of low automation level and low production efficiency. UTILITY MODEL CONTENTS

[0006] One purpose of the utility model is to provide a battery pole piece heat sealing device, which aims to solve the technical problems of low automation level and low production efficiency of the soft package battery packaging equipment.

[0007] To achieve the above purpose, a scheme provided by the utility model is: a battery pole piece heat sealing device, the battery pole piece heat sealing device comprises a heat sealing mechanism, including an upper head, a lower head, a driving assembly and a plurality of heating pipes, the upper head and the lower head are opposite and spaced apart, the plurality of heating pipes are connected with the upper head and the lower head respectively, the driving assembly is used for driving the upper head and the lower head to clamp and press the battery and the aluminum plastic film, and the heating pipe is used for heat sealing the pole lug of the battery; a conveying mechanism is used for conveying the aluminum plastic film to the space between the upper head and the lower head; a moving mechanism is used for placing the battery into the pit of the aluminum plastic film.

[0008] Optionally, the driving assembly comprises a first guide rail, a second guide rail, a moving piece, a first driving piece and a second driving piece, the first guide rail is arranged along a first direction, the moving piece is in sliding connection with the first guide rail, the second guide rail is arranged along a second direction and is fixedly connected with the moving piece, the upper head and the lower head are in sliding connection with the second guide rail respectively, the first driving piece is used for driving the moving piece to move along the first direction, so that the upper head and the lower head are displaced to the opposite sides of the battery tab, and the second driving piece is used for driving the upper head and the lower head to move towards each other along the second direction to clamp the battery tab.

[0009] Optionally, the heat sealing mechanism further comprises a limiting piece arranged on the first guide rail and used for limiting the moving piece.

[0010] Optionally, the heat sealing mechanism further comprises a buffer piece arranged on the first guide rail and used for slowing down the moving speed of the moving piece.

[0011] Optionally, the moving mechanism comprises a grabbing piece and a displacement assembly, the grabbing piece is used for grabbing the battery, and the displacement assembly drives the grabbing piece to move, and the grabbing piece is used for placing the battery into the aluminum-plastic film punching pit after moving above the aluminum-plastic film punching pit.

[0012] Optionally, the number of the grabbing pieces is multiple, the multiple grabbing pieces are arranged side by side at intervals, and the grabbing piece and the displacement assembly are detachably connected to adjust the interval of the adjacent grabbing pieces.

[0013] Optionally, the battery tab heat sealing device further comprises a positioning mechanism, the positioning mechanism is used for identifying and sending position information of the tab of the battery and the punching pit of the aluminum-plastic film, so as to assist the moving mechanism to adjust the installation position of the battery.

[0014] Optionally, the positioning mechanism comprises a light source, a camera and a deviation correction element, the light source is used for illuminating the battery and the punching pit of the aluminum-plastic film, the camera is used for acquiring the position information of the tab of the battery and the punching pit of the aluminum-plastic film, and the deviation correction element is used for analyzing the acquired position information and sending the position information to the moving mechanism.

[0015] Optionally, the positioning mechanism further comprises an adjusting assembly, the adjusting assembly comprises an adjusting rod and a connecting plate, the camera is fixedly connected with the connecting plate, and the connecting plate is movably connected with the adjusting rod, and the connecting plate can move along the circumference and the axis of the adjusting rod.

[0016] Optionally, the light source is fixedly connected with the moving mechanism, so that the light source moves synchronously with the battery in the moving mechanism.

[0017] The beneficial effects of the utility model lie in:

[0018] Compared to existing manual or semi-automatic equipment, this application integrates a heat-sealing mechanism, a conveying mechanism, and a moving mechanism, dividing the entire packaging process into three main steps, each completed by a different mechanism. The conveying mechanism transports the aluminum-plastic film to the heat-sealing station, the moving mechanism accurately places the battery into the perforation in the aluminum-plastic film, and finally, the heat-sealing mechanism completes the heat-sealing operation by the relative movement of the upper and lower sealing heads and the heating element heating the contact surface between the battery tabs and the aluminum-plastic film. Through this automated process, the heat-sealing process can be carried out efficiently and stably, greatly improving production efficiency and reducing manual intervention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a battery electrode heat sealing device provided in an embodiment of this utility model;

[0021] Figure 2 This is a schematic diagram of the heat sealing mechanism provided in an embodiment of the present invention;

[0022] Figure 3 This is provided by the embodiment of the present utility model. Figure 1 A magnified view of a portion of region A in the middle;

[0023] Figure 4 This is a schematic diagram of the positioning mechanism and heat sealing mechanism provided in this embodiment of the utility model;

[0024] Figure 5 This is provided by the embodiment of the present utility model. Figure 4 A magnified view of a portion of region C in the middle;

[0025] Figure 6 This is a schematic diagram of the battery and aluminum-plastic film structure provided in an embodiment of this utility model;

[0026] Figure 7 This is provided by the embodiment of the present utility model. Figure 1 A magnified view of a portion of region B in the middle.

[0027] Explanation of icon numbers:

[0028] 10, heat sealing mechanism; 11, upper sealing head; 12, lower sealing head; 13, driving assembly; 131, first guide rail; 132, second guide rail; 133, moving piece; 134, first driving piece; 135, second driving piece; 14, heating tube; 15, limiting piece; 16, buffer piece; 20, conveying mechanism; 30, moving mechanism; 31, grabbing piece; 32, displacement assembly; 40, positioning mechanism; 41, light source; 42, camera; 43, deviation correction element; 44, adjusting assembly; 441, adjusting rod; 442, connecting plate; 50, battery; 51, tab; 60, aluminum plastic film; 61, punched pit. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] Please refer to Figure 1 and Figure 2 , Figure 1 is a structural schematic diagram of a battery tab heat sealing device provided by the embodiments of the present application, Figure 2 is a structural schematic diagram of the heat sealing mechanism 10 provided by the embodiments of the present application.

[0031] The embodiments of the present application provide a battery tab heat sealing device. The conventional soft package battery 50 packaging equipment usually relies on manual intervention, resulting in low efficiency and unstable quality in the packaging process. In order to overcome these problems, the present embodiment proposes a battery tab heat sealing device combining a heat sealing mechanism 10, a conveying mechanism 20 and a moving mechanism 30, which can improve the efficiency and accuracy of the soft package battery 50 packaging process and meet the needs of large-scale production.

[0032] The core part of the battery tab heat sealing device is the heat sealing mechanism 10, which includes an upper sealing head 11, a lower sealing head 12, a driving assembly 13 and a plurality of heating tubes 14. The upper sealing head 11 and the lower sealing head 12 are oppositely arranged and can move relative to each other through the driving assembly 13 to clamp and press the battery 50 and the aluminum plastic film 60. The heating tubes 14 are connected to the upper sealing head 11 and the lower sealing head 12 for heating and realizing the heat sealing of the battery 50 tab 51 and the aluminum plastic film 60. By controlling the movement of the driving assembly 13, the upper and lower sealing heads 12 can realize uniform and stable clamping force, ensuring that the temperature and pressure in the heat sealing process are properly controlled, thereby improving the packaging quality and consistency.

[0033] To further enhance the degree of automation of the packaging process, the present embodiment also employs a conveying mechanism 20 and a moving mechanism 30. The conveying mechanism 20 is used to convey the aluminum plastic film 60 to the heat sealing station, usually using a conveying belt or other transmission device to ensure that the aluminum plastic film 60 is accurately sent to the heat sealing area. The moving mechanism 30 is responsible for accurately placing the battery 50 in the punch pit 61 of the aluminum plastic film 60, ensuring the accurate positioning of the battery 50 and avoiding position deviation or assembly errors during the packaging process. Through the combination of the three mechanisms, the battery 50 pole heat sealing process realizes the automation from the conveying of the aluminum plastic film 60 to the placement of the battery 50 and then to the heat sealing operation.

[0034] In the present embodiment, the entire packaging process is divided into three main steps, each of which is completed by a different mechanism. First, the conveying mechanism 20 conveys the aluminum plastic film 60 to the heat sealing station, then the moving mechanism 30 accurately places the battery 50 in the punch pit 61 of the aluminum plastic film 60, ensuring the accurate docking between the battery 50 and the aluminum plastic film 60. Finally, the heat sealing mechanism 10 completes the heat sealing operation by the relative movement of the upper and lower heads 12 and the heating of the contact surface between the battery 50 tab 51 and the aluminum plastic film 60 by the heating tube 14. Through this automated process, the heat sealing process can be carried out efficiently and stably, greatly improving production efficiency and reducing manual intervention. Compared with traditional manual or semi-automatic equipment, the present device improves production efficiency, reduces production cost, and also improves product consistency and quality.

[0035] In some embodiments, the drive assembly 13 specifically includes a first guide rail 131, a second guide rail 132, a moving piece 133, a first drive piece 134, and a second drive piece 135. These components work together to achieve the relative movement of the upper head 11 and the lower head 12 through precise control, thereby completing the heat sealing process of the battery 50 tab 51 and the aluminum plastic film 60.

[0036] First, the first guide rail 131 is arranged in a first direction, which is usually perpendicular to the conveying direction of the aluminum plastic film 60. The moving piece 133 is in sliding connection with the first guide rail 131, so the moving piece 133 can freely slide in the first direction. When the first drive piece 134 is activated, the moving piece 133 will move along the first guide rail 131 and drive the second guide rail 132 fixedly connected thereto to move in the first direction. The second guide rail 132 is generally arranged in a direction perpendicular to the surface of the aluminum plastic film 60, i.e., a second direction, and is fixedly connected with the moving piece 133. Figure 2 The X direction is the first direction, and the Y direction is the second direction.

[0037] The second guide rail 132 is responsible for ensuring the relative movement and accurate positioning of the upper head 11 and the lower head 12. The upper head 11 and the lower head 12 are respectively connected with the second guide rail 132 in a sliding manner, and through the sliding cooperation with the second guide rail 132, they can move towards each other along the second direction. When the second driving member 135 is activated, the second guide rail 132 drives the upper head 11 and the lower head 12 to move towards each other along the second direction. Through this relative movement, the upper head 11 and the lower head 12 can accurately clamp the two sides of the tab 51 of the battery 50, thereby completing the pressing operation of the battery 50 and the aluminum-plastic film 60.

[0038] In this embodiment, the first driving member 134 is responsible for driving the moving member 133 to move along the first direction, and when the moving member 133 moves in the first direction, it pushes the position adjustment of the upper head 11 and the lower head 12 in the first direction, so that the upper head 11 and the lower head 12 move to the opposite sides of the battery 50 and the aluminum-plastic film 60, ensuring that they are accurately aligned with the position of the tab 51 of the battery 50. Then, the second driving member 135 is activated to drive the upper head 11 and the lower head 12 to move towards each other along the second direction, so that the upper head 11 and the lower head 12 can clamp and press the battery 50 and the aluminum-plastic film 60, thereby completing the preparation work for heat sealing.

[0039] Through the structure in this embodiment, the driving assembly 13 can accurately control the movement path and speed of the upper head 11 and the lower head 12, ensure that the temperature and pressure are uniformly applied during the heat sealing process, and thus achieve a high-quality sealing effect. In addition, the independent control of the first driving member 134 and the second driving member 135 can also ensure that the movement in both directions is not disturbed, improving the stability and reliability of the sealing operation.

[0040] Further, the heat sealing mechanism 10 also includes a limiting member 15, which is arranged on the first guide rail 131 and is mainly used to limit the movement range of the moving member 133. The limiting member 15 aims to ensure that the moving member 133 will not exceed the predetermined trajectory or position during movement, thereby avoiding the inaccurate alignment of the upper head 11 and the lower head 12 due to excessive movement or position deviation, and thus affecting the heat sealing effect.

[0041] In this embodiment, the limiting member 15 is usually fixed at a specific position of the first guide rail 131 by a mechanical method, which can adopt the form of a positioning pin, a stop block or an adjusting screw, etc. Through these limiting members 15, the movement of the moving member 133 along the first direction will be clearly limited, ensuring its accurate sliding within the predetermined stroke.

[0042] Furthermore, the limiting component 15 can be adjusted according to different production needs, making the equipment flexible and adjustable, and adaptable to the packaging requirements of batteries 50 of different models or sizes. By adjusting the position of the limiting component 15, the range of motion of the moving component 133 can be fine-tuned, thereby optimizing the applicability and versatility of the equipment.

[0043] Furthermore, the heat-sealing mechanism 10 also includes a buffer 16, which is disposed on the first guide rail 131 to slow down the movement speed of the moving member 133. The purpose of the buffer 16 is to provide a smooth deceleration effect during the movement of the moving member 133, preventing damage to the device or battery 50 due to rapid or sudden movements.

[0044] In this embodiment, the buffer 16 is typically made of a material with elastic or damping properties, such as rubber, an airbag, or a hydraulic damping device. These materials can effectively absorb and release the impact force during movement, thereby reducing the acceleration changes of the moving part 133 and smoothing its movement. The buffer 16 prevents the moving part 133 from generating excessive impact force during rapid movement, allowing the device to gently and smoothly contact the battery 50 tabs 51, avoiding instability in the battery 50 encapsulation process due to excessively rapid movement or stopping.

[0045] In some embodiments, please refer to Figure 3 , Figure 3 This is provided by the embodiment of the present utility model. Figure 1 A magnified view of a portion of area A. The moving mechanism 30 specifically includes a gripper 31 and a displacement assembly 32. The main function of the gripper 31 is to grip the battery 50, while the displacement assembly 32 is responsible for driving the movement of the gripper 31 so that the battery 50 can be accurately placed into the perforation 61 of the aluminum-plastic film 60, completing the preparation process for encapsulation.

[0046] The gripper 31 is a key component of the moving mechanism 30, responsible for gripping and securing the battery 50 throughout the process. Depending on the requirements, the gripper 31 can employ different gripping methods, including magnetic attraction, pneumatic suction, or a robotic arm. Magnetic attraction is suitable for batteries 50 with magnetic casings, using magnetic force to firmly attract the battery 50. Pneumatic suction utilizes airflow to create negative pressure, attracting the surface of the battery 50; it is commonly used for batteries 50 made of non-magnetic materials, ensuring that the battery 50 is not disturbed by external forces during gripping and placement. A robotic arm uses a flexible robotic arm or gripper to precisely control and move the battery 50, suitable for batteries 50 with more complex or irregular shapes.

[0047] The displacement assembly 32 is responsible for driving the grabbing piece 31 to move along a predetermined trajectory. The displacement assembly 32 is usually driven by an electric or pneumatic system and can achieve linear or curved motion as needed to ensure that the grabbing piece 31 can accurately move the battery 50 from the original position to above the impact pit 61 of the aluminum-plastic film 60.

[0048] In this embodiment, the grabbing piece 31 will first grab the battery 50 and move it to above the impact pit 61 of the aluminum-plastic film 60 through the driving of the displacement assembly 32. Once in the right position, the grabbing piece 31 will gently place the battery 50 into the impact pit 61. At this time, the grabbing piece 31 needs to ensure the accurate docking between the battery 50 and the aluminum-plastic film 60 to avoid deviations or unqualified conditions during the packaging process. Compared with traditional manual operation, the automated grabbing and placing process can greatly improve work efficiency and reduce the impact of human factors on packaging quality.

[0049] Further, the number of grabbing pieces 31 can be multiple, and multiple grabbing pieces 31 are arranged in a side-by-side spaced manner. Through this design, multiple grabbing pieces 31 can perform tasks simultaneously, thereby completing the grabbing and placement of multiple batteries 50 at the same time, significantly improving production efficiency.

[0050] In addition, in order to adapt to batteries 50 of different sizes or specifications, the connection between the grabbing piece 31 and the displacement assembly 32 is designed to be detachable connection, so as to adjust the spacing between adjacent grabbing pieces 31. By adjusting the spacing, the grabbing needs of different types of batteries 50 can be flexibly adapted to ensure that each grabbing piece 31 can accurately grab the target battery 50. When needed, the layout of the grabbing piece 31 can be adjusted according to the model of the battery 50 on the production line, thereby improving the flexibility and adaptability of the equipment.

[0051] In this embodiment, the side-by-side arrangement of multiple grabbing pieces 31 enables the system to handle multiple batteries 50 in the same cycle, avoiding the efficiency bottleneck of single grabbing piece 31 operating sequentially. When producing large quantities of batteries 50, multiple grabbing pieces 31 can work simultaneously, greatly shortening the time required to complete each packaging step. In addition, the detachable connection design also makes it more convenient to replace or maintain the equipment when needed, without the need to replace the entire system, but only to adjust or replace part of the grabbing piece 31 to continue production.

[0052] In some embodiments, the battery tab heat sealing device further comprises a positioning mechanism 40, which mainly functions to identify and send the position information of the tab 51 of the battery 50 and the impact pit 61 of the aluminum-plastic film 60, to assist the moving mechanism 30 in adjusting the installation position of the battery 50, ensuring the accurate docking between the battery 50 and the aluminum-plastic film 60.

[0053] The positioning mechanism 40 monitors the battery 50 and the punched hole 61 of the aluminum-plastic film 60 in real time through sensors or visual recognition systems, and accurately detects the positional relationship between the tab 51 of the battery 50 and the punched hole 61. Common positioning technologies include optical sensors, infrared sensors, laser positioning, or machine vision systems, which can accurately identify the position of the tab 51 of the battery 50 and compare it with the position of the punched hole 61 on the aluminum-plastic film 60 to ensure correct docking of the battery 50.

[0054] In this embodiment, with the assistance of the positioning mechanism 40, the moving mechanism 30 no longer relies on simple mechanical positioning, but can achieve more intelligent and precise operation. Even if the positional information of the battery 50 and the aluminum-plastic film 60 changes slightly during production, the positioning mechanism 40 can timely feedback and adjust the moving mechanism 30 to ensure consistency and high quality in each packaging process.

[0055] Further, in some embodiments, please refer to Figures 4 to 6 , Figure 4 is a structural schematic view of the positioning mechanism 40 and the heat sealing mechanism 10 provided by the utility model embodiment, Figure 5 is a structural schematic view of the battery 50 and the aluminum-plastic film 60 provided by the utility model embodiment, Figure 4 is a local enlarged view of the C area in the structural schematic view of the battery 50 and the aluminum-plastic film 60 provided by the utility model embodiment, Figure 6 is a structural schematic view of the battery 50 and the aluminum-plastic film 60 provided by the utility model embodiment. The positioning mechanism 40 specifically comprises a light source 41, a camera 42, and a deviation correction element 43. Through high-precision image acquisition and data analysis, the accurate docking between the battery 50 and the punched hole 61 of the aluminum-plastic film 60 is ensured.

[0056] Firstly, the main function of the light source 41 is to illuminate the punched hole 61 area of the battery 50 and the aluminum-plastic film 60. Since the battery 50 and the aluminum-plastic film 60 usually have insufficient light or excessive reflection, the light source 41 provides uniform and stable illumination to ensure the clarity and accuracy of subsequent image acquisition. The selection of the light source 41 can be adjusted according to different environments and needs, such as using LED lights, laser irradiation, or other directional light sources 41 to ensure uniform illumination and eliminate the influence of shadows and reflections on image acquisition.

[0057] The camera 42 is responsible for capturing the image of the tab 51 of the battery 50 and the punched hole 61 of the aluminum-plastic film 60, and obtaining the positional information through visual recognition technology. The camera 42 is usually configured as a high-resolution imaging device and works cooperatively with the light source 41 to capture the accurate position of the battery 50 and the punched hole 61 in real time. Through image processing algorithms, the camera 42 can analyze and extract the relative positional relationship between the tab 51 of the battery 50 and the punched hole 61.

[0058] The acquired position information is then transmitted to the correction element 43, which is mainly responsible for analyzing the position information extracted from the image and making error corrections as needed. By analyzing the relative offset between the tab 51 of the battery 50 and the punch 61 of the aluminum plastic film 60, the correction element 43 can calculate the current position error of the battery 50 in real time and send adjustment instructions to the moving mechanism 30 according to these data. The algorithm of the correction element 43 usually includes steps such as geometric positioning, deviation calculation and path correction, to ensure that the system can still accurately adjust the moving trajectory to achieve precise docking even when the relative position of the battery 50 and the aluminum plastic film 60 changes slightly.

[0059] In this embodiment, the positioning mechanism 40 provides sufficient illumination through the light source 41, acquires accurate images through the camera 42, and analyzes and corrects position information through the correction element 43, to assist the moving mechanism 30 in high-precision battery 50 placement operations.

[0060] Further, in order to improve the flexibility of the positioning mechanism 40, the positioning mechanism 40 also includes an adjusting assembly 44. The purpose is to adjust the relative position of the camera 42, so that the entire positioning mechanism 40 can adapt to different needs and still maintain high-precision working performance under various conditions.

[0061] Specifically, the adjusting assembly 44 includes an adjusting rod 441 and a connecting plate 442. The adjusting rod 441 usually has high strength and stability, allowing the connecting plate 442 to move flexibly on it in the circumferential and axial directions, so that the camera 42 can be fine-tuned in different directions to adapt to batteries 50 and aluminum plastic films 60 of different sizes or shapes.

[0062] The connecting plate 442 plays a supporting and connecting role, ensuring effective connection between the camera 42 and the adjusting rod 441. The connecting plate 442 is tightly combined with the camera 42 through fixed connection, ensuring that the camera 42 will not loosen or dislocate during adjustment. The connecting plate 442 is connected to the adjusting rod 441 through movable connection and can move freely along the axial and circumferential directions of the adjusting rod 441 under its guidance.

[0063] In this embodiment, the motion trajectory of the connecting plate 442 includes two main directions: circumferential and axial. The circumferential motion allows the connecting plate 442 to rotate around the adjusting rod 441, thereby adjusting the angle of the camera 42 to adapt to different viewing angle requirements. The axial motion allows the connecting plate 442 to slide along the length direction of the adjusting rod 441, helping to pull in the relative position of the camera 42 and the battery 50 or the aluminum plastic film 60.

[0064] In some embodiments, please refer to Figure 7 , Figure 7 is the positioning mechanism provided by the utility model embodiment Figure 1The local enlarged view of the middle B area. The light source 41 is fixedly connected with the moving mechanism 30, so that the light source 41 moves synchronously with the battery 50 in the moving mechanism 30, aiming to ensure that the light source 41 and the battery 50 maintain a fixed relative position, so that the light source 41 can always provide consistent and stable illumination during the movement or placement of the battery 50, ensuring that the visual identification system can continuously obtain high-quality image data throughout the process.

[0065] In the embodiment, the light source 41 is fixedly connected with the moving mechanism 30, so that the light source 41 can change position synchronously with the movement of the battery 50, no matter how the position of the battery 50 changes on the production line, the light source 41 can always irradiate the battery 50 and the surrounding area. Because the image quality captured by the camera 42 depends largely on the uniformity and stability of the light, if the position of the light source 41 deviates or is unstable, it may cause shadows, reflections or light spots in the image, thereby affecting the accurate positioning of the battery 50 tab 51 and the aluminum plastic film 60 impact pit 61. By fixedly connecting the light source 41 with the moving mechanism 30, these problems are effectively avoided, ensuring the stability and reliability of the light source 41.

[0066] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0067] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element through a middle element.

[0068] In addition, the descriptions involving "first", "second" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0069] The above merely describes preferred embodiments of the present application, and is not intended to limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields under the inventive concept of the present application, as described in the present application specification and drawings, is included in the patent protection scope of the present application.

Claims

1. A battery pole piece heat sealing apparatus, characterized by, The battery tab heat sealing device comprises a heat sealing mechanism, a conveying mechanism, and a moving mechanism. The heat sealing mechanism comprises an upper sealing head, a lower sealing head, a driving assembly, and a plurality of heating pipes. The upper sealing head and the lower sealing head are oppositely and spacedly arranged. The driving assembly is used to drive the upper sealing head and the lower sealing head to press the battery and the aluminum plastic film.

2. The battery pole piece heat sealing apparatus of claim 1, wherein, The heating pipes are used to heat seal the battery tab.

3. The battery pole piece heat sealing apparatus of claim 2, wherein, The conveying mechanism is used to convey the aluminum plastic film to the space between the upper sealing head and the lower sealing head.

4. The battery pole piece heat sealing apparatus of claim 2, wherein, The moving mechanism is used to place the battery into the punch of the aluminum plastic film.

5. The battery pole piece heat sealing apparatus of claim 1, wherein, The driving assembly comprises a first guide rail, a second guide rail, a moving part, a first driving part, and a second driving part.

6. The battery electrode sheet heat sealing apparatus of claim 5, wherein, The first guide rail is arranged along a first direction.

7. The battery pole piece heat sealing apparatus of claim 1, wherein, The moving part is slidably connected with the first guide rail.

8. The battery electrode sheet heat sealing apparatus of claim 7, wherein, The second guide rail is arranged along a second direction and fixedly connected with the moving part.

9. The battery electrode sheet heat sealing apparatus of claim 8, wherein, The upper sealing head and the lower sealing head are slidably connected with the second guide rail respectively. The first driving part is used to drive the moving part to move along the first direction, so that the upper sealing head and the lower sealing head are displaced to the opposite sides of the battery tab.

10. The battery electrode sheet heat sealing apparatus of claim 8, wherein, The second driving part is used to drive the upper sealing head and the lower sealing head to move towards each other along the second direction, so as to clamp the battery tab. The heat sealing mechanism further comprises a limiting part arranged on the first guide rail, which is used to limit the moving part. The heat sealing mechanism further comprises a buffer part arranged on the first guide rail, which is used to slow down the moving speed of the moving part. The moving mechanism comprises a grabbing part and a displacement assembly. The grabbing part is used to grab the battery. The displacement assembly drives the grabbing part to move. After moving above the punch of the aluminum plastic film, the grabbing part is used to place the battery into the punch of the aluminum plastic film. The number of the grabbing parts is multiple. The multiple grabbing parts are arranged side by side and spacedly. The grabbing part and the displacement assembly are detachably connected, so as to adjust the distance between the adjacent grabbing parts. The battery tab heat sealing device further comprises a positioning mechanism. The positioning mechanism is used to identify and send the position information of the battery tab and the punch of the aluminum plastic film, so as to assist the moving mechanism to adjust the installation position of the battery. The positioning mechanism comprises a light source, a camera, and a deviation correction element. The light source is used to illuminate the battery and the punch of the aluminum plastic film. The camera is used to acquire the position information of the battery tab and the punch of the aluminum plastic film. The deviation correction element is used to analyze the acquired position information and send it to the moving mechanism. The positioning mechanism further comprises an adjusting assembly. The adjusting assembly comprises an adjusting rod and a connecting plate. The camera is fixedly connected with the connecting plate. The connecting plate is movably connected with the adjusting rod. The connecting plate can move along the circumference and the axis of the adjusting rod. The light source is fixedly connected with the moving mechanism, so that the light source moves synchronously with the battery in the moving mechanism.

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