Winding device and control method of winding device

Abstract

The application discloses a winding device and a control method thereof. The winding device comprises an identification belt, a detection member and a rejection member. The identification belt comprises a plurality of identification belt segments connected in sequence. Each identification belt segment is provided with a two-dimensional code. Each two-dimensional code is used for storing manufacturing information of an electric core. The detection member is used for detecting whether the plurality of two-dimensional codes are qualified. The rejection member is used for rejecting the identification belt segment where the unqualified two-dimensional code detected by the detection member is located. Thus, the two-dimensional code can be detected by the detection member and the rejection member, and the identification belt segment where the unqualified two-dimensional code is located can be rejected, so that the unqualified two-dimensional code cannot flow into a subsequent process, thereby improving the quality and content accuracy of the two-dimensional code for the electric core, avoiding tearing and scrapping of the electric core and cost increase due to tearing and re-pasting of the identification belt, improving information traceability authenticity and production rate of the electric core, and saving labor and manufacturing cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of winding devices, in particular to a winding device and a control method of the winding device. BACKGROUND

[0002] With the rapid development of the new energy automobile industry, as the core power source, the performance and quality of lithium ion batteries have become the focus of the industry. Various car companies are competing for advanced technologies such as high rate, high energy density and fast charging, and have put forward more stringent requirements for various performance indicators of lithium ion power batteries. Under this background, the production process and quality control of the battery cell are particularly important. In the production process of the battery cell, the square can battery is widely manufactured by winding technology due to its structural characteristics. The technology stacks and winds the separator, negative electrode, separator, positive electrode and other materials in sequence by the winding machine, and pastes the adhesive tape with a two-dimensional code at the end to record the production information of the battery cell. The two-dimensional code is not only the unique identification of the battery cell, but also the key basis for subsequent product tracing and quality analysis. At present, the two-dimensional code is generally engraved on the adhesive tape by a laser code engraving machine. Although the laser code engraving machine has the advantages of high efficiency and precision in two-dimensional code printing, it still cannot completely avoid the abnormal engraving situation. Once the unqualified two-dimensional code adhesive tape is mistakenly used for battery cell production, it will cause code scanning failure, affecting the subsequent information tracing and quality control. At the same time, according to the process in the related art, such battery cells need to be reworked, that is, the original two-dimensional code adhesive tape is torn off and manually re-pasted. The production data of the reworked battery cell is not true. If the battery cell is abnormal, it will still cause obstacles to subsequent tracing. Moreover, this also increases the labor cost, and is easy to cause quality problems such as tearing of the separator of the battery cell due to improper operation, which eventually leads to the scrap of the battery cell, seriously reduces the production yield and increases the manufacturing cost. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present application is to provide a winding device, which can detect the two-dimensional code and remove the identification tape segment where the unqualified two-dimensional code is located by a detection member and a removal member, so that the unqualified two-dimensional code will not flow into the subsequent process, thereby improving the quality and content accuracy of the two-dimensional code for the battery cell, avoiding the tearing and re-pasting of the identification tape, and increasing the information tracing authenticity, production yield, labor and manufacturing cost of the battery cell.

[0004] The present application also provides a control method of the winding device.

[0005] According to the winding device of the first aspect of the present application, the winding device comprises an identification tape, a detection member and a rejection member. The identification tape comprises a plurality of identification tape segments connected in sequence, and each identification tape segment is provided with a two-dimensional code. Each two-dimensional code is used to store manufacturing information of an electric core. The detection member is used to detect whether the plurality of two-dimensional codes are qualified. The rejection member is used to reject the identification tape segment in which the unqualified two-dimensional code is located.

[0006] According to the winding device of the present application, through the cooperation of the detection member and the rejection member, automatic and intelligent detection of the two-dimensional codes on the identification tape can be realized, and the identification tape segment in which the unqualified two-dimensional code is located can be rejected. Therefore, the quality of the two-dimensional codes on the identification tape segment can be strictly controlled in the production link, and the unqualified two-dimensional codes in the production link will not flow into the subsequent process. In this way, the quality and content accuracy of the two-dimensional codes applied to the electric core can be improved, the information tracing and quality control of the electric core can be improved, and a series of problems such as the untruthfulness of the electric core tracing information after rework, the increase of labor cost, the tearing of the diaphragm of the electric core, and the increase of manufacturing cost caused by the unqualified two-dimensional codes in the production source can be solved. Therefore, the information tracing authenticity of the electric core can be effectively improved, the production rate of the electric core can be improved, the labor cost and the manufacturing cost can be saved.

[0007] According to some embodiments of the present application, the rejection member comprises a body portion and a rejection portion. One end of the body portion is provided with a first clamping member. The first clamping member is used to clamp the identification tape and move the identification tape to a cutting station to cut and separate the plurality of identification tape segments. The rejection portion is telescopically arranged at the other end of the body portion. The rejection portion can selectively move to the first clamping member and is adapted to transfer the identification tape segment in which the unqualified two-dimensional code is located to the other end of the body portion for rejection.

[0008] Further, the rejection portion comprises a pump body and a second clamping member. One end of the pump body is connected to the other end of the body portion. A cavity is formed in the pump body and opens towards the other end of the pump body. The second clamping member is telescopically arranged in the cavity and is adapted to selectively extend out of the open end of the cavity under the drive of the pump body to clamp and reject the identification tape segment in which the unqualified two-dimensional code is located.

[0009] Further, the pump body and the second clamping member are both cylindrical in profile shape, and the cross-sectional area of the second clamping member is smaller than the cross-sectional area of the pump body.

[0010] In some embodiments, one side of the identification tape in the thickness direction is configured as a gluing side, the other side is provided with the two-dimensional code, the second clamping component has a gas channel, the outlet of the gas channel is located on the surface of the second clamping component facing the gluing side, and the gas in the gas channel is suitable for flowing to the gluing side through the outlet.

[0011] According to some embodiments of the present application, the first clamping component comprises a first clamping jaw and a second clamping jaw, the first clamping jaw and the second clamping jaw are oppositely arranged in the height direction of the body part and are suitable for cooperating to clamp the identification tape, wherein the first clamping jaw comprises two first clamping segments arranged at intervals in the width direction of the body part, the second clamping jaw comprises two second clamping segments arranged at intervals in the width direction of the body part, and the two second clamping segments and the two first clamping segments together define a containing space, and at least part of the rejection part selectively extends into the containing space.

[0012] Further, the body part comprises a first plate and a second plate oppositely and spaced apart in a first direction, the first plate is provided with the first clamping component on the side away from the second plate, and the second plate is provided with the rejection part on the side facing the first plate, wherein a through hole is formed on the first plate, and at least part of the rejection part selectively penetrates the through hole and extends into the containing space.

[0013] Further, the body part further comprises a groove provided between the first plate and the second plate and located at the bottom end of the first plate and the second plate, the groove is spaced apart from the rejection part, and the groove has a collecting cavity which is open towards the rejection part.

[0014] According to some embodiments of the present application, the winding device further comprises a code marking member suitable for marking the two-dimensional code on each of the plurality of identification tape segments for detection by the detection member.

[0015] In some embodiments, the winding device further comprises a cutting member provided at a cutting station and suitable for cutting and separating the plurality of identification tape segments according to a preset length.

[0016] According to the control method of the winding device according to the second aspect of the present application, the control method of the winding device comprises: obtaining the detection result of the two-dimensional code on the identification tape segment; if the detection is qualified, cutting and gluing the identification tape segment where the detected two-dimensional code is located; and if the detection is unqualified, cutting and rejecting the identification tape segment where the detected two-dimensional code is located.

[0017] Further, the detecting of the two-dimensional code comprises: detecting whether the definition of the two-dimensional code is up to standard, and detecting whether the storage information of the two-dimensional code is complete and correct; when the definition of the two-dimensional code is up to standard and the storage information is complete and correct, it is determined that the detected two-dimensional code is qualified, otherwise, it is determined that the detected two-dimensional code is unqualified.

[0018] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the application will become apparent and be readily appreciated from the description of the embodiments, which follows, including the detailed description and the accompanying drawings.

[0020] Figure 1 A schematic diagram of a winding device in an embodiment of the application;

[0021] Figure 2 A schematic diagram of a rejecting member in an embodiment of the application;

[0022] Figure 3 A schematic diagram of a part of a second clamping member in an embodiment of the application;

[0023] Figure 4 A schematic diagram of a single identification tape segment in an embodiment of the application;

[0024] Figure 5 A schematic diagram of a process flow of an identification tape in a winding device in an embodiment of the application.

[0025] LIST OF REFERENCES

[0026] 1000, winding device;

[0027] 100, identification tape; 120, identification tape segment; 120a, positioning hole; 122, two-dimensional code;

[0028] 200, detecting member;

[0029] 300, rejecting member;

[0030] 322, first plate; 322a, through hole; 324, second plate; 326, groove body; 326a, collecting cavity;

[0031] 340, first clamping member; 342, first clamping jaw; 344, second clamping jaw; 340a, accommodating space;

[0032] 360, rejecting part; 362, pump body; 364, second clamping member; 364a, outlet;

[0033] 400, cutting member;

[0034] 500, positioning hole identification member;

[0035] 600, unwinding member;

[0036] 700, roller. DETAILED DESCRIPTION

[0037] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0038] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the present application are only for the purpose of describing the specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application and the above description of drawings are used to distinguish different objects, and are not intended to describe a particular order or primary and secondary relationship.

[0039] In the present application, the phrase "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase at various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments.

[0040] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection", "attach" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In the present application, the term "and / or" is only a description of the association relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can mean that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0042] In the embodiments of the present application, the same reference signs represent the same components, and for the sake of brevity, detailed description of the same components is omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of the present application shown in the drawings, and the overall thickness, length, width, and other dimensions of the integrated device are only exemplary and should not constitute any limitation on the present application.

[0043] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0044] In the description of the present application, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them.

[0045] In the description of the present application, the first feature "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature.

[0046] "Multiple" appearing in the present application means two or more (including two).

[0047] In the present application, the battery cell can be of a winding type structure, and the battery cell applied can be configured as a lithium ion secondary battery, a lithium ion primary battery, a lithium-sulfur battery, a sodium lithium ion battery, a sodium ion battery, or a magnesium ion battery, etc., and the embodiments of the present application are not limited thereto. The battery cell can be in the shape of a cylinder, a flat body, a cuboid, or other shapes, etc., and the embodiments of the present application are not limited thereto. The battery cell is generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells, and soft-pack battery cells, and the embodiments of the present application are not limited thereto.

[0048] Reference will now be made to Figures 1-5 A winding device 1000 according to an embodiment of the present application and a control method of the winding device are described.

[0049] As Figure 1 and Figure 2As shown, according to the winding device 1000 of the first aspect of the present application, the winding device 1000 comprises an identification tape 100, a detection member 200, and a rejection member 300.

[0050] The identification tape 100 comprises a plurality of identification tape segments 120 connected in sequence, each identification tape segment 120 is provided with a two-dimensional code 122, and each two-dimensional code 122 is used to store the manufacturing information of the battery cell; the detection member 200 is used to detect whether the plurality of two-dimensional codes 122 are qualified; and the rejection member 300 is used to reject the identification tape segment 120 where the unqualified two-dimensional code 122 detected by the detection member 200 is located.

[0051] Specifically, the identification tape 100 can be used as a carrier of the battery cell manufacturing information, the identification tape 100 is composed of a plurality of identification tape segments 120 connected in sequence, and each identification tape segment 120 can be provided with a two-dimensional code 122. These two-dimensional codes 122 can store key manufacturing information related to the battery cell, such as production date, batch number, serial number, material composition, and production process parameters. Storing information in two-dimensional codes 122 can improve the density and accuracy of information storage, and also facilitate subsequent quick reading and tracing through scanning, which can enhance the convenience and transparency of battery cell production management; the detection member 200 can detect whether the two-dimensional code 122 on each identification tape segment 120 is qualified. Exemplarily, the working mode of the detection member 200 can be to use a high-resolution code scanning component in combination with an intelligent algorithm to quickly and accurately identify and verify the two-dimensional code 122. The detection content can include, but is not limited to, the clarity, integrity, and content accuracy of the two-dimensional code 122. Once any defects or non-compliance of the two-dimensional code 122 is found, the unqualified data can be immediately fed back to the control system; based on the detection result of the detection member 200, the rejection member 300 can reject the identification tape segment 120 where the unqualified two-dimensional code 122 is located from the production line, so as to avoid the flow of defective products (i.e. the identification tape segment 120 where the unqualified two-dimensional code 122 is located) into the next process, and effectively guarantee the product quality.

[0052] It should be noted that the above-mentioned rejection member 300 can be configured as a mechanical arm, a pneumatic clamp, or other automatic execution mechanism, etc. so as to quickly and accurately position and remove the corresponding identification tape segment 120 after the detection member 200 detects the unqualified two-dimensional code 122, and this rejection process will not affect the normal production process of other qualified identification tape segments 120.

[0053] According to the winding device 1000 of the present application, the automatic and intelligent detection of the two-dimensional code 122 on the identification tape 100 can be realized through the cooperative work of the detection member 200 and the rejection member 300, and the identification tape segment 120 in which the unqualified two-dimensional code 122 is located can be rejected, so that the quality of the two-dimensional code 122 on the identification tape segment 120 can be strictly controlled in the production link, and the two-dimensional code 122 unqualified in the production link will not flow into the subsequent process, so that the quality and content accuracy of the two-dimensional code 122 applied to the battery cell can be improved, the information tracing and quality control of the battery cell are improved, and at the same time, the problems such as the unqualified two-dimensional code 122 in the related technology causing the need to tear off and manually paste the adhesive tape can be solved at the production source, and a series of problems such as the inauthenticity of the battery cell tracing information after rework, the increase of labor cost, the easy tearing of the diaphragm of the battery cell and the increase of manufacturing cost can be avoided, so that the authenticity of the information tracing of the battery cell can be effectively improved, the production rate of the battery cell can be improved, the labor cost and the manufacturing cost can be saved.

[0054] As shown in Figure 1 and Figure 2 According to some embodiments of the present application, the rejection member 300 includes a body portion and a rejection portion 360.

[0055] The one end of the body portion is provided with a first clamping member 340, and the first clamping member 340 is used for clamping the identification tape 100 and moving the identification tape 100 to a cutting station to cut the plurality of identification tape segments 120 apart; the rejection portion 360 is telescopically arranged at the other end of the body portion, and the rejection portion 360 can selectively move to the first clamping member 340 and is adapted to transfer the identification tape segment 120 in which the unqualified two-dimensional code 122 is located to the other end of the body portion for rejection.

[0056] Specifically, the main body can provide mounting positions for some other components of the rejector 300 (such as the first gripping component 340), and can provide good support, fixation and protection for some other components of the rejector 300; the first gripping component 340 can be disposed at one end of the main body and extend away from the main body, and the end of the first gripping component 340 away from the main body can accurately grip the marking tape 100. It can be understood that the first gripping component 340 can sequentially grip multiple consecutive marking tape segments 120 under the control of the control system, and the first gripping component 340 can stably move them to the cutting station for marking tape segments. Specifically, the segmented cutting of the 120 means that the cutting station can cut the continuous label strip 100 into multiple independent label strip segments 120 according to a preset length, so that different label strip segments 120 can be set in different cells later. The rejection unit 360 can extend and retract relative to the main body. When the QR code 122 on a certain label strip segment 120 is detected as unqualified, the rejection unit 360 can extend to the first gripping component 340 and transfer the label strip segment 120 to the other end of the main body for rejection. This can effectively prevent unqualified products from entering the subsequent production process and ensure the quality and reliability of the final product.

[0057] It is understandable that during the process of the rejection unit 360 transferring the label strip 120 to the other end of the main body, the rejection unit 360 retracts in the direction away from the first gripping member 340. Through the flexible extension and retraction movement of the rejection unit 360, the process of rejecting the label strip 120 containing the unqualified QR code 122 can be automated and intelligent. Furthermore, since the rejection process is performed on the side of the first gripping member 340 facing the main body, it will not interfere with other process flows on the side of the first gripping member 340 away from the main body. This ensures that the relevant production processes of the winding device 1000 are carried out efficiently, which is conducive to improving production efficiency.

[0058] like Figure 2 As shown, according to some embodiments of this application, the rejection unit 360 includes a pump body 362 and a second clamping member 364.

[0059] One end of the pump body 362 is connected to the other end of the main body, and a cavity is formed inside the pump body 362; the second gripping member 364 is telescopically disposed in the cavity and is adapted to selectively extend out of the open end of the cavity under the drive of the pump body 362 to grip and remove the identification strip 120 where the unqualified QR code 122 is located.

[0060] Specifically, the rejecting unit 360 can be composed of two parts, a pump body 362 and a second clamping component 364. One end of the pump body 362 is connected to the other end of the body part, and the pump body 362 can extend from the other end of the body part towards the one end of the body part. The pump body 362 has a cavity inside, which is open towards the other end of the pump body 362, i.e. towards the one end of the pump body 362 close to the first clamping part. The second clamping component 364 can clamp the label strip segment 120, and is telescopically arranged in the cavity. It can be understood that the cavity can provide the necessary space for the telescopic movement of the second clamping component 364, ensuring that the rejecting action can be smoothly performed. At the same time, the second clamping component 364 can be completely or partially hidden in the cavity when not in operation, so as to optimize the volume and appearance simplicity of the entire rejecting unit 360. By arranging the pump body 362 and the second clamping component 364, when it is necessary to reject the label strip segment 120 in which the unqualified two-dimensional code 122 is located, the pump body 362 can drive the second clamping component 364 to extend out of the open end of the cavity, so that the second clamping component 364 accurately moves to the label strip segment 120 in which the unqualified two-dimensional code 122 is located. The second clamping component 364 firmly holds the label strip segment 120 by its clamping function, and performs a retracting movement under the driving of the pump body 362, so as to drive the label strip segment 120 to move towards the pump body 362 and perform a rejecting treatment, thereby realizing the rejection of the label strip segment 120 in which the unqualified two-dimensional code 122 is located from the winding device 1000. In this way, it can be ensured that only the label strip segment 120 in which the qualified two-dimensional code 122 is located is continuously processed, thereby improving the production efficiency and product quality.

[0061] As shown in Figure 2 According to some embodiments of the present application, the pump body 362 and the second clamping component 364 are both configured in a cylindrical shape, and the cross-sectional area of the second clamping component 364 is smaller than that of the pump body 362.

[0062] Specifically, the pump body 362 and the second clamping component 364 can be configured in a cylindrical shape. The cylindrical design can improve the uniformity of the contact surface between the components, thereby helping to improve the stability and reliability of the operation of the second clamping component 364 and the pump body 362 in clamping and rejecting the label strip segment 120. Moreover, the cross-sectional area of the second clamping component 364 is smaller than that of the pump body 362. It can be understood that the projection area of the second clamping component in the axial direction is smaller than that of the pump body 362 in the axial direction, so that there is a height difference between the second clamping component 364 and the pump body 362 in the radial direction, defining a limiting step. When the second clamping component 364 clamps the label strip segment 120 and moves to the vicinity of the pump body 362, due to the difference in cross-sectional area between the second clamping component 364 and the pump body 362, the label strip segment 120 clamped by the second clamping component 364 can be blocked by the limiting step, thereby realizing automatic rejection and effectively improving the production efficiency.

[0063] As shown in Figure 1 and Figure 3 According to some embodiments of the present application, one side of the identification tape 100 in the thickness direction is configured as the adhesive side, and the other side is provided with a two-dimensional code 122. The surface of the second clamping component 364 facing the adhesive side is provided with air holes suitable for blowing air to the adhesive side.

[0064] Specifically, one side of the identification tape 100 in the thickness direction is configured as the adhesive side, which can be used for bonding with other components (such as the battery cell) in subsequent processes, while the two-dimensional code 122 is arranged on the other side of the identification tape 100 in the thickness direction. The second clamping component 364 has a gas passage therein, and the outlet 364a of the gas passage is located on the surface of the second clamping component 364 facing the adhesive side. When the gas flows out of the gas passage, it directly acts on the adhesive side of the identification tape 100. By blowing air to the adhesive side of the identification tape 100, the adhesive side can be prevented from sticking to the second clamping component 364, thereby achieving a good auxiliary peeling effect. In the process of removing the identification tape segment 120 from the second clamping component 364 and the pump body 362, the identification tape segment 120 can be easily and quickly peeled off from the second clamping component 364 and the pump body 362, and the surface of the second clamping component 364 and the pump body 362 remains clean and tidy, which can improve the working reliability and service life of the second clamping component 364 and the pump body 362.

[0065] In addition, in some specific embodiments of the present application, the gas passage in the second clamping component 364 is configured as multiple spaced gas passages, and the outlets 364a of the multiple gas passages are arranged in an array on the surface of the second clamping component 364 facing the adhesive side. By providing multiple outlets 364a on the surface of the second clamping component 364 facing the adhesive side, the effect and uniformity of blowing air to the adhesive side can be improved, and the smoothness and efficiency of removing the identification tape segment 120 can be further improved.

[0066] As shown in Figure 2 According to some embodiments of the present application, the first clamping component 340 includes a first clamping jaw 342 and a second clamping jaw 344. The first clamping jaw 342 and the second clamping jaw 344 are oppositely arranged in the height direction of the body portion and are adapted to cooperate to clamp the identification tape 100. The first clamping jaw 342 includes two first clamping segments spaced apart in the width direction of the body, and the second clamping jaw 344 includes two second clamping segments spaced apart in the width direction of the body. The two second clamping segments and the two first clamping segments together define a receiving space 340a, and at least part of the removal portion 360 can selectively extend into the receiving space 340a.

[0067] Specifically, the first gripping component 340 may include two parts: a first gripper 342 and a second gripper 344. The first gripper 342 and the second gripper 344 are arranged opposite each other in the height direction of the main body. The first gripper 342 and the second gripper 344 can cooperate with each other to grip the labeling tape 100, thereby achieving stable gripping and transportation of the labeling tape 100. In this embodiment, the first gripper 342 includes two first gripping segments spaced apart in the width direction of the main body, and the second gripper 344 includes two second gripping segments spaced apart in the width direction of the main body. These four gripping segments work together to firmly grip the identification strip 100. Furthermore, the four gripping segments define a receiving space 340a between their respective sides. The receiving space 340a provides space for the movement of the rejection unit 360. When it is necessary to reject the identification strip segment 120 containing the unqualified QR code 122, at least a portion of the rejection unit 360 (specifically, the second gripping member 364 of the rejection unit 360) can selectively extend into the receiving space 340a. In this way, the second gripping member 364 can directly and accurately act on the gripped identification strip segment 120 without changing the position or orientation of the identification strip segment 120, thereby improving the efficiency and accuracy of the rejection operation.

[0068] Furthermore, in some specific embodiments of this application, the rejection part 360 is disposed at the centerline position of the first clamping member 340 in the width direction of the body portion. This can be understood as the rejection part 360 being disposed at the symmetrical centerline position of the two first clamping segments and the symmetrical centerline position of the two second clamping segments, so as to ensure the positioning consistency between the second clamping member 364 of the rejection part 360 and the first clamping member 340, thereby ensuring the positioning accuracy of the second clamping member 364 on the marking strip segment 120.

[0069] like Figure 2 As shown, according to some embodiments of this application, the main body includes: a first plate 322 and a second plate 324 that are opposite to and spaced apart in a first direction. A first clamping member 340 is provided on the side of the first plate 322 away from the second plate 324, and a rejection portion 360 is provided on the side of the second plate 324 facing the first plate 322. A through hole 322a is formed on the first plate 322, and at least a portion of the rejection portion 360 selectively passes through the through hole 322a and extends into the receiving space 340a.

[0070] Specifically, the first plate 322 and the second plate 324 can be oppositely and spacedly arranged in the first direction, which can be consistent with the extending direction of the rejection part 360. By adopting the double-plate structure of the first plate 322 and the second plate 324, stable structural support can be provided, and the working areas of different components can be divided. For example, the side of the first plate 322 away from the second plate 324 can be configured as a first working area, and the space between the first plate 322 and the second plate 324 can be configured as a second working area. The first gripping component 340 is arranged on the side of the first plate 322 away from the second plate 324, so that the first gripping component 340 is arranged in the first working area and can directly face the identification band 100 to be processed, facilitating the grabbing and clamping operations. The second working area can be used for the rejection part 360 to reject the identification band segment 120 and the like. The first plate 322 has a through hole 322a penetrating in the first direction, and the second gripping component 364 of the rejection part 360 can pass through the through hole 322a to extend into the accommodation space 340a of the first working area from the second working area, so as to directly clamp the identification band segment 120 in the first working area. After the second gripping component 364 clamps the identification band segment 120, it can be retracted to the first working area through the through hole 322a, so that the second gripping component 364 and the pump body 362 can smoothly reject the identification band segment 120 together.

[0071] It should be noted that, in the embodiments of the present application, the space relationship between the first plate 322 and the second plate 324 and the through hole 322a are ingeniously utilized to achieve good cooperation between the rejection part 360 and the first gripping component 340. First, the efficiency and accuracy of the rejection operation can be improved. Second, the structural compactness and stability of the entire rejection part 300 can be improved, and the installation and arrangement flexibility and working reliability of the rejection part 300 can be improved. Third, the maintenance and repair work of the rejection part 360 and the first gripping component 340 can be facilitated, and the maintenance efficiency can be improved and the maintenance cost can be saved.

[0072] As shown in Figure 2 According to some embodiments of the present application, the body part further comprises a groove body 326 arranged between the first plate 322 and the second plate 324 and located at the bottom end of the first plate 322 and the second plate 324. The groove body 326 is spaced from the rejection part 360, and has a collection cavity 326a open toward the rejection part 360.

[0073] Specifically, the trough 326 has a certain length in the first direction, and the two ends of the trough 326 in the first direction can be connected to the bottom end of the first plate 322 and the bottom end of the second plate 324 respectively, so that the trough 326 can cover the area between the first plate 322 and the second plate 324, so that the trough 326 can conveniently receive the identification strip segment 120 rejected from the rejection section 360. In addition, the trough 326 maintains a certain distance from the rejection section 360, which can ensure that the rejection section 360 has enough space to move during the rejection process without interfering with the trough 326, thereby improving the working reliability and stability of the rejection section 360. The collection chamber 326a of the tank 326 is open to the rejection section 360, which allows the rejected label strips 120 to fall smoothly into the collection chamber 326a without scattering in other parts of the device. The rejection of non-conforming label strips 120 is collected and stored in the collection chamber 326a, and the centralized processing of these non-conforming products facilitates subsequent classification, recycling or processing, thereby improving the efficiency and cleanliness of the entire production line.

[0074] It should be noted that the aforementioned groove 326 can be manufactured separately or integrally formed with the first plate 322, the second plate 324, etc. For example, the groove 326 can be constructed as an integral part with the first plate 322, and the second plate 324 can be constructed as a separate component. Alternatively, the groove 326 can be constructed as an integral part with the second plate 324, while the first plate 322 can be constructed as a separate component. The groove 326 can also be constructed as an integral part with both the first plate 322 and the second plate 324, with all three integrally formed. This application does not limit this.

[0075] Furthermore, in some specific embodiments of this application, the width dimensions of the trough 326, the first plate 322, and the second plate 324 are constructed to be equal, so as to ensure that the trough 326 covers a sufficient collection range and helps to improve the structural stability of the main body.

[0076] like Figure 1 As shown, according to some embodiments of this application, the winding device 1000 further includes: an engraving component, which is adapted to engrave QR codes 122 on multiple identification strip segments 120 for detection by the detection component 200.

[0077] Specifically, the coding member can engrave a two-dimensional code 122 having important manufacturing information such as the production date, serial number, batch number, etc. of the battery cell on the surface of the plurality of identification tape segments 120 by laser engraving or the like, for subsequent traceability, management and quality control. By engraving the two-dimensional code 122 on the identification tape 100, the automatic collection and processing of information can be conveniently realized, improving production efficiency and accuracy, and the two-dimensional code 122 engraved on the identification tape 100 is detected by the detection member 200 to verify the integrity and readability of the two-dimensional code 122. When a defective two-dimensional code 122 (such as blur, misplacement, missing, etc.) is detected, a rejection mechanism can be triggered to remove the identification tape segment 120 with the defective two-dimensional code 122 from the entire identification tape 100 by the rejection member 300. In this way, the winding device 1000 has a comprehensive function, which not only realizes the winding and identification of the battery cell, but also ensures the accuracy and reliability of the identification information.

[0078] As shown in Figure 1 , according to some embodiments of the present application, the winding device 1000 further comprises a cutting member 400, which is arranged at a cutting station and is adapted to cut the plurality of identification tape segments 120 apart according to a predetermined length.

[0079] Specifically, the cutting member 400 is used to cut the identification tape segments 120 apart from the entire identification tape 100. After the two-dimensional code 122 of the identification tape segment 120 is detected by the detection member 200, the identification tape segment 120 with the qualified two-dimensional code 122 can be cut by the cutting member 400 and then enter the subsequent processing procedure, while the identification tape segment 120 with the unqualified two-dimensional code 122 can be cut by the cutting member 400 and the rejection member 300 together. Exemplarily, the cutting member 400 can be configured as a cutter, which has the advantages of simple operation, low cost, high cutting quality and efficiency, etc., which helps to improve production efficiency and quality, and save production cost.

[0080] In addition, as shown in Figure 4 , in some specific embodiments of the present application, a positioning hole 120a is arranged between the two adjacent identification tape segments 120 for positioning the identification tape segments 120, so as to improve the convenience and accuracy of the operations such as cutting, clamping and rejecting of the identification tape segments 120.

[0081] Further, in some other specific embodiments of the present application, the winding device 1000 further comprises a positioning hole recognition member 500 as shown in Figure 1 , which is used to recognize the positioning hole 120a on the identification tape 100 and feed the recognition data to the control system to control the first clamping member 340 to clamp the identification tape segment and the like, and control the rejection member 360 to selectively clamp and reject the identification tape segment and the like.

[0082] In some specific embodiments of this application, the winding device 1000 further includes an unwinding component 600 and a roller 700. The identification tape with a QR code 122 is wound onto the unwinding component 600, which is rotatable to unwind the identification tape. By setting the unwinding component 600, the stability and accuracy of the unwinding of the identification tape can be improved, thereby enhancing the convenience and accuracy of subsequent detection of the identification tape. The roller 700 is used to cover the identification tape. After the identification tape is unwound from the unwinding component 600, it can pass through the roller 700 for buffering, thereby improving the material tension stability and surface flatness of the identification tape itself. In this way, the accuracy of the winding device 1000 in detecting and controlling the quality of the identification tape can be further improved.

[0083] like Figure 5 As shown, in the winding device 1000 of this application, the process flow of the identification tape is as follows: unwinding → buffer roller passing → identification through positioning hole 120a → detection of QR code 122. If the detection is qualified, the corresponding identification tape segment is cut and glued; if it is unqualified, the corresponding identification tape segment is cut and rejected.

[0084] According to the control method of the winding device according to the second aspect of the present application, the control method of the winding device includes: obtaining the detection result of the QR code 122 on the identification strip 120; if the detection is qualified, cutting and applying adhesive to the identification strip 120 where the detected QR code 122 is located; if the detection is unqualified, controlling the rejection member 300 to reject the identification strip 120 where the detected QR code 122 is located.

[0085] Specifically, according to the control method of the winding device in this application embodiment, after obtaining the detection result of the QR code 122 on the identification strip 120, different processing is performed on the identification strip 120 where the detected QR code 122 is located according to different detection results. When the QR code 122 is qualified, the identification strip 120 where the detected QR code 122 is located is cut and glued to facilitate the subsequent bonding of qualified products with the battery cell; when the QR code 122 is unqualified, the identification strip 120 where the detected QR code 122 is located is cut and rejected to prevent defective products from flowing into the next process. By automating the processing of the QR code 122 detection results, real-time monitoring and precise control of the winding process can be achieved, which can improve the quality and content accuracy of the QR code 122 applied to the battery cell, and enhance the information traceability and quality control of the battery cell.

[0086] According to some embodiments of this application, the detection of QR code 122 includes: detecting whether the clarity of QR code 122 meets the standard, and detecting whether the stored information of QR code 122 is complete and error-free; if the clarity of QR code 122 meets the standard and the stored information is complete and error-free, then the detected QR code 122 is deemed qualified; otherwise, the detected QR code 122 is deemed unqualified.

[0087] Specifically, the detection of the two-dimensional code 122 can include two aspects. First, the control system can evaluate the clarity of the two-dimensional code 122. If the two-dimensional code 122 is too blurred or damaged, it can cause the scanning member to fail to correctly decode the information therein. Therefore, during the detection process, the control system can check whether the lines of the two-dimensional code 122 are clear, the edges are sharp, and there are no obvious stains or scratches, etc., to detect whether the clarity of the two-dimensional code 122 meets the standard. Second, the control system can also verify the information stored in the two-dimensional code 122, including checking the integrity (i.e., whether the two-dimensional code 122 contains all necessary fields and data) and accuracy (i.e., whether the data is correct without loss or error) of the information. Through this detection, it can be ensured that the information represented by the two-dimensional code 122 is valuable for the subsequent production process. When the clarity of the two-dimensional code 122 meets the standard and the stored information is complete and correct, the system determines that the two-dimensional code 122 is qualified, the two-dimensional code 122 is considered valid, and the identification tape segment 120 where the two-dimensional code 122 is located is allowed to enter the subsequent production process (such as adhesive application, etc.). If the clarity of the two-dimensional code 122 does not meet the standard or the stored information is incomplete or incorrect, the system determines that the two-dimensional code 122 is unqualified. In this case, the rejection mechanism can be triggered to reject the identification tape segment 120 where the two-dimensional code 122 is located from the entire roll of identification tape 100, so as to avoid affecting the quality of the product, thereby improving the traceability and quality control level of the product.

[0088] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0089] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A winding device, characterized in that, include: The identification strip (100) includes multiple sequentially connected identification strip (100) segments, each of which is provided with a QR code (122), and each QR code (122) is used to store the manufacturing information of the battery cell; The detection component (200) is used to detect whether the multiple QR codes (122) are qualified; Rejection component (300), the rejection component (300) is used to reject the identification band (100) segment where the unqualified QR code (122) is located, as detected by the detection component (200); The rejector (300) includes: The main body has a first clamping component (340) at one end. The first clamping component (340) is used to clamp the identification strip (100) and move the identification strip (100) to the cutting station to cut and separate multiple segments of the identification strip (100). A rejection section (360) is retractably disposed at the other end of the main body. The rejection section (360) is selectively movable to the first gripping member (340) and adapted to transfer the identification band (100) segment containing the non-conforming QR code (122) to the other end of the main body for rejection. The rejection section (360) includes: Pump body (362), one end of which is connected to the other end of the main body, and a cavity is formed inside the pump body (362) that opens toward the other end of the pump body (362); The second gripping component (364) is telescopically disposed in the cavity and is adapted to selectively extend out of the open end of the cavity under the drive of the pump body (362) to grip and remove the identification band (100) segment containing the unqualified QR code (122).

2. The winding device according to claim 1, characterized in that, The pump body (362) and the second clamping member (364) are both constructed in a cylindrical shape, and the cross-sectional area of ​​the second clamping member (364) is smaller than the cross-sectional area of ​​the pump body (362).

3. The winding device according to claim 2, characterized in that, The identification strip (100) is configured as an adhesive side on one side in the thickness direction, and the QR code (122) is provided on the other side. The second gripping member (364) has a gas channel, and the outlet (364a) of the gas channel is located on the surface of the second gripping member (364) facing the adhesive side. The gas in the gas channel is adapted to flow to the adhesive side through the outlet (364a).

4. The winding device according to claim 1, characterized in that, The first gripping component (340) includes a first gripper (342) and a second gripper (344), the first gripper (342) and the second gripper (344) being disposed opposite each other in the height direction of the body portion and adapted to cooperate to grip the identification strip (100), wherein the first gripper (342) includes two first gripping segments spaced apart in the width direction of the body portion, and the second gripper (344) includes two second gripping segments spaced apart in the width direction of the body portion, the two second gripping segments and the two first gripping segments together defining an accommodating space (340a), at least a portion of the rejection portion (360) selectively extends into the accommodating space (340a).

5. The winding device according to claim 4, characterized in that, The main body includes a first plate (322) and a second plate (324) that are opposite to and spaced apart in a first direction. The first plate (322) has a first clamping member (340) on the side away from the second plate (324), and the second plate (324) has a rejection part (360) on the side facing the first plate (322). A through hole (322a) is formed on the first plate (322), and at least a portion of the rejection part (360) selectively passes through the through hole (322a) and extends into the receiving space (340a).

6. The winding device according to claim 5, characterized in that, Also includes: The trough (326) is disposed between the first plate (322) and the second plate (324) and is located at the bottom of the first plate (322) and the second plate (324). The trough (326) is spaced apart from the rejection part (360). The trough (326) has a collection cavity (326a) which is open toward the rejection part (360).

7. The winding device according to claim 1, characterized in that, Also includes: The engraving component is adapted to engrave the QR code (122) on multiple segments of the identification band (100) for detection by the detection component (200).

8. The winding device according to claim 1, characterized in that, Also includes: A cutting component (400) is provided at a cutting station and is adapted to cut and separate multiple segments of the identification strip (100) according to a preset length.

9. A control method for the winding apparatus according to any one of claims 1-8, characterized in that, include: Obtain the detection result of the QR code (122) on the identification band (100) segment; If the test is successful, the segment of the identification strip (100) containing the tested QR code (122) will be cut off and glued. If the test fails, the segment of the identification band (100) containing the tested QR code (122) will be cut off and removed.

10. The control method for the winding device according to claim 9, characterized in that, The detection of the QR code (122) includes: The clarity of the QR code (122) is checked to see if it meets the standard, and the stored information of the QR code (122) is checked to see if it is complete and correct. If the clarity of the QR code (122) meets the standard and the stored information is complete and correct, then the QR code (122) is deemed qualified; otherwise, the QR code (122) is deemed unqualified.

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