Lamination device and battery production system

Abstract

The utility model relates to a lamination device and a battery production system. The lamination device comprises a lamination table, a transfer mechanism and a detection mechanism, the transferring mechanism is used for transferring the pole pieces to the stacking table, the stacking device further comprises a detection mechanism, and the detection mechanism is located on at least one side of the stacking table and used for conducting burr detection on the pole pieces on the transferring mechanism. And a detection mechanism is introduced to at least one side of the stacking table, and the detection mechanism is controlled to carry out burr detection on the pole piece on the transfer mechanism. When the transfer mechanism transfers the pole piece to the stacking table, the detection mechanism performs burr detection on the pole piece, so that the pole piece is detected in the transfer process, full detection on a burr line is realized, the stacking efficiency and the burr detection effect are effectively considered, and the quality of a battery is improved.

Description

Technical Field

[0001] This application relates to the technical field of battery production, and particularly to a laminating device and a battery production system. Background Art

[0002] In the laminating process, the positive electrode sheet and the negative electrode sheet need to be cut to the required size, and then the cut positive electrode sheet and negative electrode sheet are stacked in sequence to form the required battery. During the stacking process, it is necessary to detect the burrs on the electrode sheets to reduce the risk of battery short circuit caused by burrs. However, limited by the structural design of traditional laminating devices, it is impossible to effectively balance the laminating efficiency and the burr detection effect, which affects the quality of the battery. Summary of the Utility Model

[0003] Based on this, it is necessary to provide a laminating device and a battery production system that can effectively balance the laminating efficiency and the burr detection effect and improve the quality of the battery.

[0004] In a first aspect, this application provides a laminating device, which includes: a stacking table; a transfer mechanism for transferring the electrode sheet to the stacking table; wherein, the laminating device further includes a detection mechanism located on at least one side of the stacking table for detecting the burrs on the electrode sheet on the transfer mechanism.

[0005] In the above laminating device, a detection mechanism is introduced on at least one side of the stacking table, and the detection mechanism is controlled to detect the burrs on the electrode sheet on the transfer mechanism. When the transfer mechanism transfers the electrode sheet to the stacking table, the detection mechanism detects the burrs on the electrode sheet, so that the electrode sheet is detected during the transfer process, realizing full inspection on the production line for burrs, effectively balancing the laminating efficiency and the burr detection effect, and being beneficial to improving the quality of the battery.

[0006] In some embodiments, the detection mechanism includes an adjustment component and a camera. The adjustment component is used to adjust the distance between the camera and the electrode sheet, and the camera is used to detect the burrs on the edge of the electrode sheet. Designed in this way, the adjustment component is introduced to facilitate adjusting the distance between the camera and the electrode sheet, so that the distance between the two meets the depth of field of the camera to obtain clearer image information and improve the burr detection effect.

[0007] In some embodiments, the shooting direction of the camera is the horizontal direction. Designed in this way, the shooting direction of the electrode sheet is designed to be the horizontal direction, which is convenient for horizontally shooting the edge of the electrode sheet, making the burr detection more effective and accurate and improving the burr detection effect.

[0008] In some embodiments, there are at least two cameras. A shooting gap for the electrode sheet to pass through is formed between two of the cameras, and one end of the shooting gap leads to the stacking table. Designed in this way, a shooting gap is formed between the two side cameras, so that the burr detection can be completed when the electrode sheet passes through the shooting gap, thereby further improving the burr detection efficiency.

[0009] In some embodiments, the detection mechanism further includes an illuminating member for providing light to the imager. With such a design, the illuminating member is introduced to provide sufficient light to the imager, facilitating the acquisition of clearer images and thus improving the burr detection effect.

[0010] In some embodiments, the laminating device further includes a collector for receiving the non-conforming pole pieces. With such a design, the collector is introduced to facilitate the unified recycling of the non-conforming pole pieces.

[0011] In some embodiments, the collector is located on at least one side of the laminating table and below the detection end of the detection mechanism. With such a design, the collector is arranged below the detection mechanism, enabling the non-conforming pole pieces to fall into the collector and improving the recycling efficiency of the pole pieces.

[0012] In some embodiments, the laminating device further includes a rectifying mechanism located at the upstream end of the detection mechanism for rectifying the position of the pole piece, and a transfer mechanism for transferring the rectified pole piece to the detection mechanism. With such a design, the rectifying mechanism is introduced to correct the position of the pole piece to make it consistent with the set position, facilitating stable burr detection and laminating operations.

[0013] In some embodiments, the rectifying mechanism includes a supporting member and a moving component. The supporting member is used to support the pole piece, and the moving component is used to drive the supporting member to move in at least one direction to adjust the distance between the pole piece and the detection mechanism. With such a design, the moving component is used to drive the supporting member to move in at least one direction to change the position of the supporting member, enabling the pole piece to be adjusted to the set position and facilitating the improvement of the laminating quality.

[0014] In some embodiments, the rectifying mechanism further includes a rotating component for driving the supporting member to rotate around a direction perpendicular to its supporting surface. With such a design, the rotating component is introduced to drive the supporting member to drive the pole piece to rotate, adjusting the placement angle of the pole piece, facilitating the adjustment of the pole piece to the set position, and being conducive to improving the burr detection effect and the laminating effect.

[0015] In some embodiments, the laminating device further includes a rectifying camera for acquiring the position and size information of the pole piece before rectification. With such a design, the rectifying camera is introduced to acquire the position and size information of the pole piece before rectification, facilitating the rectification of the pole piece and enabling stable laminating and detection operations.

[0016] In some embodiments, the laminating device further includes a conveying mechanism located at the upstream end of the rectifying mechanism, and a transfer mechanism for transferring the pole piece on the conveying mechanism to the rectifying mechanism. With such a design, through the conveying mechanism, stable pole pieces are provided for the laminating process, enabling stable laminating.

[0017] In some embodiments, the transfer mechanism includes a support beam and at least one pick-up component slidably disposed on the support beam. The pick-up component is used to pick up or release the electrode sheet and can move to the detection mechanism and the stacking table respectively. With such a design, the transfer mechanism is designed as a support beam and a pick-up component, which facilitates the stable transfer of the electrode sheet to the detection mechanism and the stacking table.

[0018] In a second aspect, the present application provides a battery production system, which includes the lamination device of any one of the above. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the lamination device described in some embodiments of the present application.

[0020] Figure 2 It is a schematic structural diagram of the detection mechanism described in some embodiments of the present application.

[0021] Figure 3 It is a schematic structural diagram of the deviation rectifying mechanism described in some embodiments of the present application.

[0022] 100. Lamination device; 10. Stacking table; 20. Detection mechanism; 21. Adjustment component; 211. Driver; 212. Adjustment seat; 22. Camera; 23. Lighting member; 30. Collector; 40. Deviation rectifying mechanism; 41. Support member; 42. Moving component; 43. Rotating component; 50. Deviation rectifying camera; 60. Conveying mechanism; 70. Transfer mechanism; 71. Support beam; 72. Pick-up component; 200. Electrode sheet; X. Shooting direction. Detailed Embodiments

[0023] In order to make the above objects, features and advantages of the present application more obvious and understandable, the following detailed description of the specific embodiments of the present application will be made with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0024] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0025] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there is a term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0026] In the present application, unless otherwise clearly defined and limited, if there are terms such as "mounted", "connected", "coupled", "fixed", etc., these terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0027] In the present application, unless otherwise clearly defined and limited, if there is a description such as a first feature being "on" or "under" a second feature, the meaning may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0028] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0029] Currently, from the perspective of the development of the market situation, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles and electric cars, as well as in many fields such as military equipment and aerospace. With the continuous expansion of the application fields of power batteries, the market demand is also continuously increasing.

[0030] The components in the battery that can carry out electrochemical reactions generally include a positive electrode plate, a separator and a negative electrode plate. The positive electrode plate, the separator and the negative electrode plate can adopt a winding process or a stacking process. In the stacking process, the positive electrode plate and the negative electrode plate need to be cut to the required size, and then the cut positive electrode plate and negative electrode plate are stacked in sequence to form the required battery. During the stacking process, it is necessary to detect the burrs of the electrode plates. If the burr specifications of the cut edges of the electrode plates exceed the standard, it will cause a short circuit of the battery, directly affecting the quality of the battery.

[0031] Considering efficiency issues, the burrs of the cut edges of the electrode plates are usually detected by sampling inspection in traditional stacking devices. However, sampling inspection cannot completely eliminate the electrode plates with excessive burrs. Therefore, it is impossible to effectively balance the stacking efficiency and the burr detection effect.

[0032] Based on this, aiming at the problem that the traditional stacking device cannot effectively balance the stacking efficiency and the burr detection effect, this application provides a stacking device, introducing a detection mechanism on at least one side of the stacking table, and controlling the detection mechanism to detect the burrs of the electrode plates on the transfer mechanism. When the transfer mechanism transfers the electrode plates to the stacking table, the detection mechanism detects the burrs of the electrode plates, so that the electrode plates are detected during the transfer process, realizing full inspection of burrs on the production line, effectively balancing the stacking efficiency and the burr detection effect, and being beneficial to improving the quality of the battery.

[0033] In some embodiments of the present application, please refer to Figure 1, this application provides a stacking device 100, and the stacking device 100 includes: a stacking table 10, a transfer mechanism 70, and a detection mechanism 20. The transfer mechanism 70 is used to transfer the electrode sheet 200 onto the stacking table 10; wherein, the stacking device 100 further includes a detection mechanism 20, and the detection mechanism 20 is located on at least one side of the stacking table 10 and is used to detect the burrs of the electrode sheet 200 on the transfer mechanism 70.

[0034] The stacking table 10 refers to a platform structure for stacking the electrode sheets 200. For example: the transfer mechanism 70 stacks the cut positive electrode sheet, negative electrode sheet, and separator on the stacking table 10 in sequence, so that the respective electrode sheets 200 are stacked in sequence to form a required battery. The structure of the stacking table 10 can have various designs. For example: it can be a simple plate-like structure; or it can be a structure combined with a linear module, which is convenient for driving the plate-like structure to move in the corresponding direction.

[0035] The transfer mechanism 70 refers to a structure that can transfer the electrode sheet 200 onto the stacking table 10. The transfer mechanism 70 can be a multi-axis robotic arm or a combined structure of multiple linear modules and suction cups, etc. At the same time, the transfer mechanism 70 can pick up the electrode sheet 200 by adsorption to reduce damage to the electrode sheet 200 during the transfer process.

[0036] The detection mechanism 20 refers to a device that can detect the burrs of the electrode sheet 200. For example: obtaining the image information of the edge of the electrode sheet 200 and judging whether there is a raised burr structure at the edge of the electrode sheet 200; or detecting the flatness or roughness of the edge of the electrode sheet 200, etc., to judge the burr condition of the electrode sheet 200. The detection mechanism 20 can be located on one side of the stacking table 10 or on the opposite sides of the stacking table 10. When the detection mechanism 20 is located on the opposite sides of the stacking table 10, the positive electrode sheet and the negative electrode sheet can be transferred onto the stacking table 10 from the opposite sides of the stacking table 10 respectively and be detected for burrs by the detection mechanisms 20 on both sides.

[0037] It can be understood that the detection mechanism 20 can detect the burrs of the electrode sheet 200 on the transfer mechanism 70, which means that the electrode sheet 200 can be detected by the detection mechanism 20 before being released by the transfer mechanism 70 to judge whether the burrs of the electrode sheet 200 meet the requirements. Specifically in some examples, the transfer mechanism 70 can pass through the detection mechanism 20 and the stacking table 10 in sequence. In this way, when the transfer mechanism 70 carries the electrode sheet 200 through the detection mechanism 20, it can be detected online by the detection mechanism 20 to achieve effective full inspection. At the same time, during the detection process, there is no need to transfer the electrode sheet 200 outside the stacking process or stop the stacking process, which is beneficial to improving the stacking efficiency.

[0038] With such a design, the electrode sheet 200 is detected during the transfer process, realizing full inspection of burrs online, effectively taking into account both the stacking efficiency and the burr detection effect, which is beneficial to improving the quality of the battery.

[0039] In some embodiments of the present application, optionally, please refer to Figure 1 and Figure 2 , the detection mechanism 20 includes an adjustment component 21 and a camera 22. The adjustment component 21 is used to adjust the distance between the camera 22 and the electrode tab 200, and the camera 22 is used to detect burrs on the edge of the electrode tab 200.

[0040] The camera 22 refers to a device that can acquire the position and image information of the electrode tab 200, such as: charge coupled device (CCD for short), CMOS image sensor, etc. There are various shooting angles of the camera 22 for the edge of the electrode tab 200. For example: the camera 22 is located above or below the edge of the electrode tab 200, and shoots the edge of the electrode tab 200 in the vertical direction; or, the camera 22 and the electrode tab 200 are on the same horizontal plane, and the camera 22 is located on one side of the edge of the electrode tab 200. Specifically, in some examples, there are at least two cameras 22, and at least one camera 22 is provided on one side of each of the two edges of the electrode tab 200 along its width direction. The camera 22 shoots the edge from one side of the edge of the electrode tab 200 to acquire the image information on the edge.

[0041] Among them, in the lamination process, the edge of the electrode tab 200 can be cut so that the electrode tab 200 meets the required size. After the electrode tab 200 is cut, some burrs may appear on the edge of the electrode tab 200. If the specifications of the burrs do not meet the requirements, it is easy to pierce the separator, resulting in a short circuit of the battery. Therefore, the camera 22 detects burrs on the edge of the electrode tab 200, which is beneficial to improving the effect of burr detection.

[0042] The adjustment component 21 refers to a structure that can adjust the distance between the camera 22 and the electrode tab 200. When the camera 22 accurately detects the edge of the electrode tab 200, a certain shooting distance is required to acquire clearer image information. For example: if the distance between the camera 22 and the electrode tab 200 exceeds the depth of field of the camera 22, the adjustment component 21 can be used to drive the camera 22 to approach one side of the electrode tab 200 so that the distance meets the depth of field of the camera 22. It can be understood that the distance between the camera 22 and the electrode tab 200 refers to the distance between the camera 22 and the electrode tab 200 along the shooting direction X of the camera 22.

[0043] Optionally, there are various structural designs of the adjustment component 21. The adjustment component 21 can be a cylinder, a hydraulic cylinder, an electric cylinder, etc., or a combination of a motor and a transmission mechanism, such as: a combination of a motor and a lead screw mechanism, a combination of a motor and a rack and pinion, a combination of a motor and a crank-slider mechanism, etc.

[0044] With such a design, an adjustment component 21 is introduced to facilitate the adjustment of the distance between the imager 22 and the pole piece 200, so that the distance between the two meets the depth of field of the imager 22 to obtain clearer image information and improve the burr detection effect.

[0045] In some embodiments of the present application, optionally, please refer to Figure 1 and Figure 2 , the shooting direction X of the imager 22 is the horizontal direction.

[0046] The shooting direction X refers to the direction towards which one end of the imager 22 faces. The shooting direction X being the horizontal direction indicates that the imager 22 shoots the edge of the pole piece 200 along the horizontal direction. In this way, the imager 22 can shoot the edge of the pole piece 200 along the direction of the surface of the pole piece 200, which is convenient for better detecting burrs at the edge.

[0047] In some examples, please refer to Figure 1 , at least one imager 22 can be respectively arranged on both sides of the pole piece 200 along the shooting direction X of the imager 22. The shooting ends of the imagers 22 on both sides are arranged facing each other. In this way, when the pole piece 200 passes between the imagers 22 on both sides, the burr detection can be quickly completed, improving the detection efficiency.

[0048] With such a design, the shooting direction X of the pole piece 200 is designed as the horizontal direction, which is convenient for horizontally shooting the edge of the pole piece 200, making the burr detection more effective and accurate and improving the burr detection effect.

[0049] In some embodiments of the present application, optionally, please refer to Figure 1 , the imager 22 includes at least two. A shooting gap for the pole piece 200 to pass through is formed between two of the imagers 22, and one end of the shooting gap leads to the stacking table 10.

[0050] It can be known that two of the imagers 22 are located on both sides of the moving path of the pole piece 200 on the transfer mechanism 70, which is convenient for the pole piece 200 to pass smoothly between the imagers 22 on both sides under the action of the transfer mechanism 70. The moving path of the pole piece 200 refers to the path formed by the transfer mechanism 70 transferring the pole piece 200 to the stacking table 10. At least one imager 22 is respectively arranged on the opposite sides of the moving path of the pole piece 200, so that a shooting gap is formed between them. In this way, when the pole piece 200 is driven by the transfer mechanism 70 and passes through the shooting gap, it can be subjected to burr detection by the imagers 22 on both sides. Among them, one end of the shooting gap leads to the stacking table 10, so that the moving path of the pole piece 200 is located in the shooting gap, thereby enabling the pole piece 200 to move to the stacking table 10 under the action of the transfer mechanism 70.

[0051] On either side of the moving path of the pole piece 200, the number of the cameras 22 can be one or more. When the number of the cameras 22 is more than one, on either side of the moving path of the pole piece 200, the cameras 22 are distributed at intervals along the moving path of the pole piece 200.

[0052] In addition, the cameras 22 located on both sides of the shooting gap can be adjusted by the same adjustment component 21, or can be adjusted by different adjustment components 21 respectively. Specifically, in some embodiments, both the adjustment component 21 and the cameras 22 include a plurality of them, and they are arranged in a one-to-one manner. The adjustment component 21 is used to drive the corresponding camera 22 to move towards or away from the shooting gap.

[0053] With such a design, a shooting gap is formed between the cameras 22 on both sides, so that the burr detection can be completed when the pole piece 200 passes through the shooting gap, thereby further improving the efficiency of burr detection.

[0054] In some embodiments of the present application, optionally, please refer to Figure 2 , the detection mechanism 20 further includes a lighting member 23, and the lighting member 23 is used to provide light for the cameras 22.

[0055] The lighting member 23 can be arranged in front of the camera 22, or can be arranged on the side of the camera 22, as long as it can provide effective light for the shooting of the camera 22. At the same time, during adjustment, the lighting member 23 can move synchronously with the camera 22. For example, both the lighting member 23 and the camera 22 are connected to the adjustment component 21.

[0056] Specifically, in some examples, please refer to Figure 2 , the adjustment component 21 includes a driver 211 and an adjustment seat 212. The driver 211 is used to drive the adjustment seat 212 to move. The lighting member 23 and the cameras 22 are both arranged on the adjustment seat 212, and the lighting member 23 is located in front of the cameras 22. At the same time, in order to reduce the occlusion of the cameras 22, the lighting member 23 is provided with a through hole, and one end of the camera 22 is arranged towards the through hole.

[0057] With such a design, the lighting member 23 is introduced to provide sufficient light for the cameras 22, which is convenient for obtaining clearer images, thereby improving the burr detection effect.

[0058] In some embodiments of the present application, optionally, please refer to Figure 1 , the stacking device 100 further includes a collector 30, and the collector 30 is used to receive the pole pieces 200 that do not meet the requirements.

[0059] The non - compliant electrode sheet 200 refers to the situation where parameters such as the number and size specifications of burrs on the edge of the electrode sheet 200 do not meet the set conditions. If such electrode sheets 200 participate in the lamination operation, there is a high probability that they will pierce the separator, resulting in a short - circuit of the battery. As for the non - compliant conditions, they can be determined according to the actual requirements of the lamination process.

[0060] When the detection mechanism 20 detects that the burrs of the electrode sheet 200 do not meet the requirements, the transfer mechanism 70 transfers the electrode sheet 200 to the collector 30, so that the non - compliant electrode sheets 200 are recycled uniformly. Among them, the collector 30 can be designed as but not limited to a box shape, a barrel shape, etc.

[0061] With such a design, the introduction of the collector 30 facilitates the uniform recycling of non - compliant electrode sheets 200.

[0062] In some embodiments of the present application, optionally, please refer to Figure 1 , the collector 30 is located on at least one side of the lamination table 10 and below the detection end of the detection mechanism 20.

[0063] When the detection mechanism 20 detects that the electrode sheet 200 does not meet the requirements, the transfer mechanism 70 can release the electrode sheet 200, so that the electrode sheet 200 falls into the collector 30 located below, which is convenient for rapid recycling. At this time, the transfer mechanism 70 is in an empty - load state and does not move to the lamination table 10.

[0064] With such a design, the collector 30 is arranged below the detection mechanism 20, so that the non - compliant electrode sheets 200 can fall into the collector 30, improving the recycling efficiency of the electrode sheets 200.

[0065] In some embodiments of the present application, optionally, please refer to Figure 1 , the lamination device 100 further includes a rectifying mechanism 40. The rectifying mechanism 40 is located at the upstream end of the detection mechanism 20 and is used to rectify the position of the electrode sheet 200. The transfer mechanism 70 is used to transfer the rectified electrode sheet 200 to the detection mechanism 20.

[0066] The rectifying mechanism 40 refers to a device that can adjust the position of the electrode sheet 200 so that the position of the electrode sheet 200 can be kept consistent. When the electrode sheet 200 is placed on the rectifying mechanism 40, its position may deviate from the set position. If the electrode sheet 200 is directly transferred to the lamination table 10 through the transfer mechanism 70, it is very easy to cause misalignment between the electrode sheets 200, affecting the stability of the battery structure. At the same time, it may also collide with the detection mechanism 20 and damage the equipment. Therefore, through the rectifying mechanism 40 for rectification, the position of the electrode sheet 200 is kept consistent with the set position, so that the electrode sheet 200 can effectively pass through the detection mechanism 20 and complete the effective lamination operation.

[0067] The deviation rectifying mechanism 40 can drive the pole piece 200 to move in different directions, so that the pole piece 200 is moved to a set position. At the same time, the deviation rectifying mechanism 40 can also drive the pole piece 200 to rotate to adjust the placement angle of the pole piece 200.

[0068] With such a design, the deviation rectifying mechanism 40 is introduced to correct the position of the pole piece 200 to make it consistent with the set position, which is convenient for stable burr detection and lamination operations.

[0069] In some embodiments of the present application, optionally, please refer to Figure 3 , the deviation rectifying mechanism 40 includes a supporting member 41 and a moving component 42. The supporting member 41 is used to support the pole piece 200, and the moving component 42 is used to drive the supporting member 41 to move in at least one direction to adjust the distance between the pole piece 200 and the detection mechanism 20.

[0070] The supporting member 41 refers to a structure on which the pole piece 200 can be placed. It can be designed as a plate-like structure or a block structure. To stably place the pole piece 200 on the supporting member 41, adsorption holes can be provided on the supporting member 41 to stably adsorb the pole piece 200 on the supporting member 41 by using negative pressure.

[0071] When the pole piece 200 is placed on the supporting member 41, the moving component 42 drives the supporting member 41 to move in at least one direction, so that the pole piece 200 is adjusted to the set position. Among them, when the supporting member 41 is driven by the moving component 42, there are various moving directions. For example, the supporting member 41 can move along the moving path of the pole piece 200; or move in a direction intersecting the moving path of the pole piece 200.

[0072] Among them, the moving component 42 has various designs. It can be a cylinder, a hydraulic cylinder, an electric cylinder, etc., or a combination of a motor and a transmission mechanism. For example: a combination of a motor and a lead screw mechanism, a combination of a motor and a rack and pinion, a combination of a motor and a crank-slider mechanism, etc. Of course, it can also be one or more linear modules.

[0073] With such a design, the moving component 42 is used to drive the supporting member 41 to move in at least one direction to change the position of the supporting member 41, so that the pole piece 200 is adjusted to the set position, which is beneficial to improving the quality of lamination.

[0074] In some embodiments of the present application, optionally, please refer to Figure 3 , the deviation rectifying mechanism 40 further includes a rotating component 43, and the rotating component 43 is used to drive the supporting member 41 to rotate around a direction perpendicular to its own supporting surface.

[0075] The rotating component 43 refers to a structure that can drive the supporting surface of the supporting member 41 to rotate, and it can be, but is not limited to, a motor. The rotating component 43 drives the supporting member 41 to rotate, which can change the placement angle of the pole piece 200. This not only facilitates the burr detection by the detection mechanism 20 but also makes it easier to keep the pole pieces 200 aligned with each other during lamination.

[0076] With such a design, the rotating component 43 is introduced to drive the supporting member 41 to drive the pole piece 200 to rotate, adjusting the placement angle of the pole piece 200, facilitating the adjustment of the pole piece 200 to the set position, and being beneficial to improving the burr detection effect and the lamination effect.

[0077] In some embodiments of the present application, optionally, please refer to Figure 1 , the lamination device 100 further includes a deviation correction camera 50, and the deviation correction camera 50 is used to obtain the position and size information of the pole piece 200 before deviation correction.

[0078] During the lamination process, the deviation correction camera 50 can obtain the position of the pole piece 200 before deviation correction. If the current position deviates from the set position, the deviation correction mechanism 40 can adjust the pole piece 200 to make it located at the set position. At the same time, through the obtained size information of the pole piece 200, the current distance between the edge of the pole piece 200 and the detection mechanism 20 can be calculated. If the current distance does not meet the detection requirements, such as exceeding the depth of field of the detection mechanism 20, the position of the detection mechanism 20 can be adjusted to make the detection mechanism 20 better detect the pole piece 200. Specifically, in some examples, the detection mechanism 20 includes an adjustment component 21 and a camera 22. The deviation correction camera 50 feeds back the size of the pole piece 200 obtained, and judges whether the distance between the pole piece 200 and the camera 22 meets the depth of field of the camera 22. If not, the adjustment component 21 drives the camera 22 to move to adjust the distance between the camera 22 and the pole piece 200 to make it meet the depth of field of the camera 22.

[0079] Among them, the deviation correction camera 50 can be, but is not limited to, a charge coupled device (CCD for short), a CMOS image sensor, etc.

[0080] With such a design, the deviation correction camera 50 is introduced to obtain the position and size information of the pole piece 200 before deviation correction, facilitating the deviation correction of the pole piece 200 and making the lamination and detection operations proceed stably.

[0081] In some embodiments of the present application, optionally, please refer to Figure 1 , the lamination device 100 further includes a conveying mechanism 60. The conveying mechanism 60 is located at the upstream end of the deviation correction mechanism 40, and the transfer mechanism 70 is used to transfer the pole piece 200 on the conveying mechanism 60 to the deviation correction mechanism 40.

[0082] The conveying mechanism 60 refers to the structure that conveys the pole piece 200 to the loading position. For example, it can be, but is not limited to, a belt conveyor, a chain conveyor, a roller conveyor, etc. In some specific examples, the conveying mechanism 60 includes a motor to drive the belt to rotate, and uses the belt to convey each pole piece 200 to the loading position. At the same time, to shorten the overall length of the laminating device 100, the conveying direction of the conveying mechanism 60 can intersect with the moving path of the pole piece 200 on the transfer mechanism 70.

[0083] The number of the conveying mechanisms 60 can be one or multiple. In some specific examples, there are two conveying mechanisms 60, two deviation rectifying mechanisms 40, and two detection mechanisms 20. On either side of the stacking table 10, the conveying mechanism 60, the deviation rectifying mechanism 40, and the detection mechanism 20 are arranged in sequence, and the detection mechanism 20 is closer to the stacking table 10.

[0084] With such a design, through the conveying mechanism 60, a stable pole piece 200 is provided for the laminating process, enabling the laminating to proceed stably.

[0085] In some embodiments of the present application, optionally, please refer to Figure 1 , the transfer mechanism 70 includes a support beam 71 and at least one picking component 72 slidably arranged on the support beam 71. The picking component 72 is used to pick up or release the pole piece 200, and can move to the detection mechanism 20 and the stacking table 10 respectively.

[0086] The picking component 72 refers to the structure that can pick up or release the pole piece 200. For example, the pole piece 200 can be picked up by grasping or adsorbing. During the laminating process, the picking component 72 picks up the pole piece 200 and slides on the support beam 71 to move to the detection mechanism 20; during the process of transferring the pole piece 200 to the stacking table 10, the detection mechanism 20 synchronously performs burr detection on the pole piece 200; if the pole piece 200 meets the requirements, the picking component 72 releases the pole piece 200 onto the stacking table 10.

[0087] In some specific examples, the picking component 72 includes a moving part and a suction cup arranged on the moving part. The suction cup is used to adsorb or release the pole piece 200, and the moving part is slidably arranged on the support beam 71. Among them, there are various sliding methods of the moving part on the support beam 71. For example, it is installed on the support beam 71 through structures such as guide rails or chutes. Of course, the moving method of the moving part can be manually driven or automatically driven. For example, it can be a cylinder, a hydraulic cylinder, an electric cylinder, etc., or a motor, etc. At the same time, the size of the suction cup can be smaller than the width of the pole piece 200 along its own width direction. For example, the distance between the suction cup and the edge of the pole piece 200 along its own width direction is less than or equal to 5 mm.

[0088] The number of the picking components 72 can be one or more. For example, at least one picking component 72 is provided on either side of the stacking table 10, which facilitates the transfer of the positive electrode plate and the negative electrode plate onto the stacking table 10. In some specific examples, on either side of the stacking table 10, there are two picking components 72. One of the picking components 72 is used to transfer the electrode plate 200 of the conveying mechanism 60 onto the rectifying mechanism 40; the other picking component 72 is used to sequentially transfer the rectified electrode plate 200 to the detecting mechanism 20 and the collecting body 30, or sequentially transfer it to the detecting mechanism 20 and the stacking table 10.

[0089] With such a design, the transfer mechanism 70 is designed as the support beam 71 and the picking components 72, which facilitates the stable transfer of the electrode plate 200 to the detecting mechanism 20 and the stacking table 10.

[0090] In some embodiments of the present application, the present application provides a battery production system, and the battery production system includes the stacking device 100 of any one of the above.

[0091] In some embodiments of the present application, please refer to Figures 1 to 3 , the present application provides a stacking device 100, and the stacking device 100 includes a conveying mechanism 60, a rectifying mechanism 40, a rectifying camera 50, a detecting mechanism 20, a stacking table 10 and a transfer mechanism 70. Among the opposite sides of the stacking table 10, the conveying mechanism 60, the rectifying mechanism 40 and the detecting mechanism 20 are sequentially arranged. The conveying mechanism 60 conveys the electrode plate 200 to the loading position, and the transfer mechanism 70 transfers the electrode plate 200 at the loading position to the rectifying mechanism 40; the rectifying mechanism 40 rectifies the electrode plate 200, and under the action of the transfer mechanism 70, the rectified electrode plate 200 passes through the detecting mechanism 20 for burr detection; if it meets the requirements, it is placed on the stacking table 10; if it does not meet the requirements, it is released into the collecting body 30. Among them, the rectifying camera 50 acquires the position information of the electrode plate 200 before rectification, and the rectifying mechanism 40 rectifies the electrode plate 200 according to the position information of the electrode plate 200, so that the electrode plate 200 is located at the set position. At the same time, the rectifying camera 50 can also acquire the size of the electrode plate 200, and the detecting mechanism 20 can adjust its own shooting depth of field according to the size of the electrode plate 200. At this time, the detecting mechanism 20 includes an adjusting component 21 and a camera 22, and the adjusting component 21 is used to adjust the position of the camera 22.

[0092] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0093] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A lamination device, characterized in that: The lamination device comprises: Stacking (10); A transfer mechanism (70) for transferring the pole piece (200) to the stacking platform (10); a detection mechanism (20), the detection mechanism (20) being located on at least one side of the stacking platform (10) and being used to perform burr detection on the pole piece (200) on the transfer mechanism (70); The detection mechanism (20) comprises an adjustment component (21) and a camera (22), wherein the adjustment component (21) is used to adjust the distance between the camera (22) and the pole piece (200), and the camera (22) is used to perform burr detection on the edge of the pole piece (200).

2. The lamination device according to claim 1, characterized in that: The shooting direction (X) of the camera (22) is a horizontal direction.

3. The lamination device according to claim 1, characterized in that: The camera (22) comprises at least two cameras, wherein a shooting gap is formed between the two cameras (22) for the pole piece (200) to pass through, and one end of the shooting gap leads to the stacking platform (10).

4. The lamination device according to claim 1, characterized in that: The detection mechanism (20) further comprises an illumination element (23), and the illumination element (23) is used to provide illumination for the camera (22).

5. The lamination device according to claim 1, characterized in that: The lamination device further comprises a collecting body (30), wherein the collecting body (30) is used to receive the pole pieces (200) that do not meet the requirements.

6. The lamination device according to claim 5, characterized in that: The collecting body (30) is located on at least one side of the stacking platform (10) and below the detection end of the detection mechanism (20).

7. The lamination device according to any one of claims 1 to 6, characterized in that: The lamination device further comprises a deviation correction mechanism (40), the deviation correction mechanism (40) being located at the upstream end of the detection mechanism (20) and being used for correcting the position of the pole piece (200), and the transfer mechanism (70) being used for transferring the pole piece (200) after deviation correction to the detection mechanism (20).

8. The lamination device according to claim 7, characterized in that: The deviation correction mechanism (40) comprises a supporting member (41) and a moving assembly (42), wherein the supporting member (41) is used to support the pole piece (200), and the moving assembly (42) is used to drive the supporting member (41) to move along at least one direction to adjust the distance between the pole piece (200) and the detection mechanism (20).

9. The lamination device according to claim 8, characterized in that: The deviation-correcting mechanism (40) further comprises a rotating assembly (43), wherein the rotating assembly (43) is used to drive the supporting member (41) to rotate in a direction perpendicular to its own supporting surface.

10. The lamination device according to claim 7, characterized in that: The lamination device further comprises a deviation correction camera (50), and the deviation correction camera (50) is used to obtain position and size information of the pole piece (200) before deviation correction.

11. The lamination device according to claim 7, characterized in that: The lamination device further comprises a conveying mechanism (60), wherein the conveying mechanism (60) is located at the upstream end of the deviation correcting mechanism (40), and the transfer mechanism (70) is used to transfer the pole piece (200) on the conveying mechanism (60) to the deviation correcting mechanism (40).

12. The lamination device according to any one of claims 1 to 6, characterized in that: The transfer mechanism (70) comprises a support beam (71) and at least one pick-up component (72) slidably arranged on the support beam (71); the pick-up component (72) is used to pick up or release the pole piece (200) and can be moved to the detection mechanism (20) and the stacking platform (10) respectively.

13. A battery production system, characterized in that: The battery production system comprises the lamination device according to any one of claims 1-12.

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