Winding device and method for controlling winding device

Abstract

The invention discloses a winding device and a control method of the winding device, the winding device comprises an identification belt, a detection piece and a rejection piece, the identification belt comprises a plurality of identification belt sections connected in sequence, each identification belt section is provided with a two-dimensional code, and each two-dimensional code is used for storing manufacturing information of a battery cell; the detection piece is used for detecting whether the two-dimensional codes are qualified or not; and the rejecting part is used for rejecting the identification belt section where the unqualified two-dimensional code detected by the detection part is located. Therefore, through the detection piece and the removal piece, the two-dimensional code can be detected, and the identification band section where the unqualified two-dimensional code is located is removed, so that the unqualified two-dimensional code cannot flow into the subsequent process, and the quality and content accuracy of the two-dimensional code for the battery cell can be improved; therefore, tearing and scrapping of the battery cell, cost increase and the like caused by tearing and re-pasting of the identification tape can be avoided, information tracing authenticity and production yield of the battery cell can be improved, and labor and manufacturing cost can be saved.

Description

Technical Field

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

[0002] With the rapid development of the new energy vehicle industry, lithium-ion batteries, as its core power source, have become the focus of industry attention in terms of performance and quality. 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 on various performance indicators of lithium-ion power batteries. In this context, the production process and quality control of battery cells are particularly important. In the production process of battery cells, square shell batteries are widely manufactured using winding technology due to their structural characteristics. This technology uses a winding machine to wind up the diaphragm, negative electrode, diaphragm, positive electrode and other stacking materials in sequence, and pastes a tape with a QR code at the end to record the production information of the battery cell. The QR code is not only the unique identifier of the battery cell, but also the key basis for subsequent product traceability and quality analysis. At present, the QR code is generally engraved on the tape by a laser engraving machine. In actual production, although the laser engraving machine has the advantages of high efficiency and precision in QR code printing, it still cannot completely avoid abnormal engraving. Once unqualified QR code tape is mistakenly used in battery cell production, it will lead to poor code scanning, affecting subsequent information traceability and quality control. At the same time, according to the process in the relevant technology, such battery cells need to be reworked, that is, the original QR code tape is torn off and manually re-pasted. The production data of the reworked battery cells is not true. If this battery cell is abnormal, it will still cause obstacles to subsequent traceability. In addition, this move also brings about an increase in labor costs, and it is very easy to cause quality problems such as battery cell diaphragm tearing due to improper operation, which ultimately leads to the scrapping of the battery cell, seriously reducing the production rate and increasing manufacturing costs. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to propose a winding device, which can detect the QR code through a detection member and a rejection member, and reject the identification tape segment where the unqualified QR code is located, so that the unqualified QR code will not flow into the subsequent process, thereby improving the quality and content accuracy of the QR code used for the battery cell, avoiding the battery cell being torn and scrapped due to the tearing and re-pasting of the identification tape and the increase in cost, etc., can improve the authenticity of the information traceability of the battery cell, the production quality rate, and save labor and manufacturing costs.

[0004] The present application also proposes a control method for a winding device.

[0005] According to the winding device of the first aspect embodiment of the present application, the winding device includes: an identification tape, a detection member and a rejection member, the identification tape includes a plurality of identification tape segments connected in sequence, each of the identification tape segments is provided with a two-dimensional code, and each of the two-dimensional code is used to store manufacturing information of the battery cell; the detection member is used to detect whether the plurality of the two-dimensional codes are qualified; the rejection member is used to reject the identification tape segment where the unqualified two-dimensional code is located and which is detected by the detection member.

[0006] According to the winding device of the present application, the detection part and the rejection part can work together to realize the automatic and intelligent detection of the QR code on the identification tape, and reject the identification tape segment where the unqualified QR code is located, so that the quality of the QR code on the identification tape segment can be strictly controlled in the production link, and the unqualified QR code in the production link will not flow into the subsequent process. In this way, the quality and content accuracy of the QR code applied to the battery cell can be improved, and the information traceability and quality control of the battery cell can be improved. At the same time, it can be solved at the source of production in the related technology that the unqualified QR code requires the tape to be torn off and manually re-pasted, which brings about a series of problems such as untrue battery cell traceability information after rework, increased labor costs, easy tearing and scrapping of the battery cell diaphragm, and increased manufacturing costs. Therefore, the authenticity of the battery cell information traceability can be effectively improved, the battery cell production quality rate can be improved, and labor costs and manufacturing costs can be saved.

[0007] According to some embodiments of the present application, the rejection member includes: a main body and a rejection portion, wherein a first clamping component is provided at one end of the main body, the first clamping component 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 provided at the other end of the main body, the rejection portion can be selectively moved to the first clamping component, and is suitable for transferring the identification tape segment where the unqualified QR code is located to the other end of the main body for rejection.

[0008] Furthermore, the rejection part includes: a pump body and a second clamping component, one end of the pump body is connected to the other end of the main body, and a cavity open toward the other end of the pump body is formed in the pump body; the second clamping component is telescopically arranged in the cavity, and is suitable for selectively extending out of the open end of the cavity under the drive of the pump body to clamp and reject the identification band segment where the unqualified QR code is located.

[0009] Furthermore, the contour shapes of the pump body and the second clamping member are both cylindrical, 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 constructed as a bonding side, and the other side is provided with the QR code. The second clamping component has a gas channel therein, and the outlet of the gas channel is located on the surface of the second clamping component facing the bonding side, and the gas in the gas channel is suitable for flowing to the bonding side through the outlet.

[0011] According to some embodiments of the present application, the first clamping component includes: a first clamping jaw and a second clamping jaw, the first clamping jaw and the second clamping jaw are arranged opposite to each other in the height direction of the main body, and the two are suitable for cooperating to clamp the identification band, wherein the first clamping jaw includes two first clamping sections arranged at intervals in the width direction of the main body, and the second clamping jaw includes two second clamping sections arranged at intervals in the width direction of the main body, and the two second clamping sections and the two first clamping sections jointly define an accommodating space, and at least a portion of the rejection portion can selectively extend into the accommodating space.

[0012] Further, the main body portion includes: a first plate and a second plate that are opposite to and spaced apart in a first direction, the first clamping component is provided on the side of the first plate facing away from the second plate, and the removal portion is provided on the side of the second plate facing the first plate, wherein a through hole is formed on the first plate, and at least a portion of the removal portion can be selectively passed through the through hole and extend into the accommodating space.

[0013] Furthermore, the main body also includes: a trough body, which is arranged between the first plate and the second plate and located at the bottom end of the first plate and the second plate, the trough body is separated from the rejection part, and the trough body has a collection cavity, and the collection cavity is open toward the rejection part.

[0014] According to some embodiments of the present application, the winding device further includes: a code engraving member, which is suitable for engraving the two-dimensional code on the plurality of identification tape segments for detection by the detection member.

[0015] In some embodiments, the winding device further comprises: a cutting piece, which is disposed at a cutting station and is suitable for cutting and separating the plurality of identification tape segments according to preset lengths.

[0016] According to the control method of the winding device of the second aspect embodiment of the present application, the control method of the winding device includes: obtaining the detection result of the QR code on the identification tape segment; if the detection is qualified, cutting and gluing the identification tape segment where the detected QR code is located; if the detection is unqualified, cutting and discarding the identification tape segment where the detected QR code is located.

[0017] Furthermore, the detection of the QR code includes: detecting whether the clarity of the QR code meets the standard, and detecting whether the storage information of the QR code is complete and correct; when the clarity of the QR code meets the standard and the storage information is complete and correct, the detected QR code is determined to be qualified, otherwise, the detected QR code is determined to be unqualified.

[0018] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

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

[0021] Figure 2 This is a schematic diagram of the removed parts in the embodiment of the present application;

[0022] Figure 3 This is a partial schematic diagram of the second clamping component in the embodiment of the present application;

[0023] Figure 4 This is a schematic diagram of a single identification band segment in an embodiment of the present application;

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

[0025] Reference numerals:

[0026] 1000, winding device;

[0027] 100, identification tape; 120, identification tape segment; 120a, positioning hole; 122, QR code;

[0028] 200. Inspection parts;

[0029] 300, reject parts;

[0030] 322, first plate; 322a, through hole; 324, second plate; 326, tank body; 326a, collection chamber;

[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 part; 364a, outlet;

[0033] 400. Cut pieces;

[0034] 500, positioning hole identification part;

[0035] 600, unwinding;

[0036] 700. Roller. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0039] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0040] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0042] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are 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, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0043] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0045] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0046] The term "plurality" used in the present application refers to two or more (including two).

[0047] In the present application, the battery cell can be a wound structure, and the battery cell used in the battery cell can be constructed 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., which is not limited in the embodiments of the present application. The battery cell can be cylindrical, flat, rectangular or other shapes, etc., which is not limited in the embodiments of the present application. Battery cells are generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells and soft-pack battery cells, which is not limited in the embodiments of the present application.

[0048] Reference below Figure 1-Figure 5 A winding device 1000 and a control method of the winding device according to an embodiment of the present application are described.

[0049] like Figure 1 and Figure 2As shown, according to the winding device 1000 of the embodiment of the first aspect of the present application, the winding device 1000 includes: a marking tape 100, a detection component 200 and a rejection component 300.

[0050] Among them, the identification tape 100 includes 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 part 200 is used to detect whether the plurality of two-dimensional codes 122 are qualified; the rejection part 300 is used to reject the identification tape segment 120 where the unqualified two-dimensional code 122 detected by the detection part 200 is located.

[0051] Specifically, the identification tape 100 can be used as a carrier of the manufacturing information of the battery cell. The identification tape 100 is composed of a plurality of identification tape segments 120 connected in sequence. 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 with the two-dimensional code 122 can improve the density and accuracy of information storage, and also facilitate subsequent rapid reading and tracing by scanning, which can enhance the convenience and transparency of battery cell production management. The detection piece 200 can detect whether the two-dimensional code 122 on each identification tape segment 120 is qualified. For example, the detection piece 2 The working mode of 00 is to use a high-resolution code scanning component in conjunction with an intelligent algorithm to quickly and accurately identify and verify the two-dimensional code 122. The detection content may include but is not limited to the clarity, integrity and content accuracy of the two-dimensional code 122. Once any defects or non-compliance with regulations are found in the two-dimensional code 122, the unqualified data can be immediately fed back to the control system; based on the detection results of the detection component 200, the rejection component 300 can remove the identification band segment 120 where the unqualified two-dimensional code 122 is located from the production line, thereby preventing defective products (i.e., the identification band segment 120 where the unqualified two-dimensional code 122 is located) from flowing into the next process, which can effectively ensure product quality.

[0052] It should be pointed out that the above-mentioned rejection piece 300 can be constructed with a robotic arm, a pneumatic clamp or other automated actuators, so as to quickly and accurately locate and remove the corresponding identification tape segment 120 after the detection piece 200 detects an unqualified QR 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 detection element 200 and the rejection element 300 can work together to realize the automated and intelligent detection of the two-dimensional code 122 on the identification tape 100, and reject the identification tape segment 120 where the unqualified two-dimensional code 122 is located, 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 unqualified two-dimensional code 122 in the production link will not flow into the subsequent process. In this way, the quality and content accuracy of the two-dimensional code 122 applied to the battery cell can be improved, and the information traceability and quality control of the battery cell can be improved. At the same time, it can be solved at the source of production in the related technology that the unqualified two-dimensional code 122 requires the tape to be torn off and manually re-pasted, which brings about a series of problems such as untrue battery cell traceability information after rework, increased labor costs, easy tearing and scrapping of the battery cell diaphragm, and increased manufacturing costs, thereby effectively improving the authenticity of the battery cell information traceability, improving the battery cell production quality rate, and saving labor costs and manufacturing costs.

[0054] like Figure 1 and Figure 2 As shown, according to some embodiments of the present application, the rejecting member 300 includes: a main body portion and a rejecting portion 360 .

[0055] Among them, a first clamping component 340 is provided at one end of the main body, and the first clamping component 340 is used to clamp the identification tape 100 and move the identification tape 100 to the cutting station to cut and separate multiple identification tape segments 120; the rejection component 360 is telescopically arranged at the other end of the main body, and the rejection component 360 can be selectively moved to the first clamping component 340, and is suitable for transferring the identification tape segment 120 where the unqualified two-dimensional code 122 is located to the other end of the main body for rejection.

[0056] Specifically, the main body can provide a mounting position for some other parts of the rejection member 300 (such as the first clamping part 340), and can play a good role in supporting, fixing and protecting some other parts of the rejection member 300; the first clamping part 340 can be arranged at one end of the main body and extend away from the main body, and the end of the first clamping part 340 away from the main body can accurately clamp the identification tape 100. It can be understood that the first clamping part 340 can clamp a plurality of continuous identification tape segments 120 in sequence under the control of the control system, and the first clamping part 340 can stably move it to the cutting station to cut the identification tape segments. The segmented cutting of 120, specifically, the cutting station can be responsible for cutting the continuous identification tape 100 into multiple independent identification tape segments 120 according to a preset length, so that different identification tape segments 120 can be subsequently set in different battery cells; the rejection part 360 can telescopically move relative to the main body. When the detection result of the two-dimensional code 122 on a certain identification tape segment 120 is unqualified, the rejection part 360 can extend and move to the first clamping part 340, and transfer the identification tape segment 120 to the other end of the main body for rejection, thereby effectively preventing unqualified products from entering the subsequent production process and ensuring the quality and reliability of the final product.

[0057] It can be understood that during the process of the rejection part 360 transferring the identification band segment 120 to the other end of the main body, the rejection part 360 retracts in the direction away from the first clamping part 340. Through the flexible telescopic movement of the rejection part 360, the automation and intelligence of the rejection process of the identification band segment 120 where the unqualified two-dimensional code 122 is located can be achieved. In addition, the rejection process is carried out on the side of the first clamping part 340 facing the main body, and will not interfere with other process flows on the side of the first clamping part 340 away from the main body, which can ensure 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 the present application, the rejecting portion 360 includes: a pump body 362 and a second clamping component 364 .

[0059] Among them, one end of the pump body 362 is connected to the other end of the main body, and a cavity is formed in the pump body 362; the second clamping part 364 is telescopically arranged in the cavity, and is suitable for selectively extending out of the open end of the cavity under the drive of the pump body 362 to clamp and remove the identification band segment 120 where the unqualified QR code 122 is located.

[0060] Specifically, the rejection part 360 can be composed of a pump body 362 and a second clamping part 364. One end of the pump body 362 is connected to the other end of the main body, and the pump body 362 can extend from the other end of the main body toward one end of the main body. The pump body 362 has a cavity inside, and the cavity is open toward the other end of the pump body 362, that is, toward the end of the pump body 362 close to the first clamping part, and the second clamping part 364 can clamp the identification band segment 120. The second clamping part 364 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 part 364 to ensure that the rejection action can be carried out smoothly. At the same time, the second clamping part 364 can be completely hidden or partially hidden in the cavity when not working, thereby optimizing the volume and appearance simplicity of the entire rejection part 360. By setting the pump body 362 and the second clamping component 364, when it is necessary to remove the identification band segment 120 where 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 moves accurately to the identification band segment 120 where the unqualified two-dimensional code 122 is located, and the second clamping component 364 firmly grasps the identification band segment 120 through its clamping function, and retracts under the drive of the pump body 362 to drive the identification band segment 120 to move toward the pump body 362 and remove it, thereby realizing the removal of the identification band segment 120 where the unqualified two-dimensional code 122 is located from the winding device 1000. In this way, it can be ensured that only the identification band segment 120 where the qualified two-dimensional code 122 is located is further processed, thereby improving production efficiency and product quality.

[0061] like Figure 2 As shown, according to some embodiments of the present application, the contours of the pump body 362 and the second clamping member 364 are both cylindrical, and the cross-sectional area of ​​the second clamping member 364 is smaller than the cross-sectional area of ​​the pump body 362 .

[0062] Specifically, the pump body 362 and the second clamping member 364 can be constructed 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 second clamping member 364 and the pump body 362 in clamping and removing the marking tape segment 120. In addition, the cross-sectional area of ​​the second clamping member 364 is smaller than the cross-sectional area of ​​the pump body 362. It can be understood that the axial projection area of ​​the second clamping portion is smaller than the axial projection area of ​​the pump body 362, so that there is a height difference between the second clamping member 364 and the pump body 362 in the radial direction, defining a limiting step. When the second clamping member 364 clamps the marking tape segment 120 and moves to the vicinity of the pump body 362, due to the difference in the cross-sectional area between the second clamping member 364 and the pump body 362, the marking tape segment 120 clamped by the second clamping member 364 can be blocked by the limiting step, thereby achieving automatic removal, effectively improving production efficiency.

[0063] like Figure 1 and Figure 3 As shown, according to some embodiments of the present application, one side of the identification tape 100 in the thickness direction is constructed as a gluing side, and the other side is provided with a QR code 122, and the surface of the second clamping part 364 facing the gluing side has air holes, which are suitable for blowing air toward the gluing side.

[0064] Specifically, one side of the identification tape 100 in the thickness direction is constructed as a bonding side, which can be used to bond with other components (such as battery cells) in subsequent processes, and the QR 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 channel therein, and the outlet 364a of the gas channel is located on the surface of the second clamping component 364 facing the gluing side. When the gas flows out of the gas channel, it will directly act on the gluing side of the identification tape 100. By blowing air toward the gluing side of the identification tape 100, the gluing side can be prevented from sticking to the second clamping component 364, thereby playing a good auxiliary peeling role. During the process of the second clamping component 364 and the pump body 362 removing the identification tape segment 120, the identification tape segment 120 can be easily and quickly peeled off and removed from the second clamping component 364 and the pump body 362, and the surfaces of the second clamping component 364 and the pump body 362 are kept clean and tidy, thereby improving the working reliability and 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 channel structure in the second clamping member 364 is a plurality of gas channels arranged at intervals, and the outlets 364a of the plurality of gas channels are arranged in an array on the surface of the second clamping member 364 facing the bonding side. By providing a plurality of outlets 364a on the surface of the second clamping member 364 facing the bonding side, the effect and uniformity of gas blowing toward the bonding side can be improved, and the smoothness and efficiency of removing the marking tape segment 120 can be further improved.

[0066] like Figure 2 As shown, 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 arranged relative to each other in the height direction of the main body, and the two are suitable for cooperating to clamp the identification band 100, wherein the first clamping jaw 342 includes two first clamping sections arranged at intervals in the width direction of the main body, and the second clamping jaw 344 includes two second clamping sections arranged at intervals in the width direction of the main body, and the two second clamping sections and the two first clamping sections jointly define an accommodating space 340a, and at least a portion of the rejection portion 360 can selectively extend into the accommodating space 340a.

[0067] Specifically, the first clamping component 340 may include a first clamping jaw 342 and a second clamping jaw 344. The first clamping jaw 342 and the second clamping jaw 344 are relatively arranged in the height direction of the main body. The first clamping jaw 342 and the second clamping jaw 344 can cooperate with each other to clamp the identification band 100, thereby realizing stable grasping and transportation of the identification band 100. In the embodiment of the present application, the first clamping jaw 342 includes two first clamping sections spaced apart in the width direction of the main body, and the second clamping jaw 344 includes two second clamping sections spaced apart in the width direction of the main body. The four clamping sections work together to firmly clamp the identification tape 100, and the four clamping sections define a accommodating space 340a between the sides facing each other. The accommodating space 340a can provide space for the movement of the rejection portion 360. When it is necessary to reject the identification tape segment 120 where the unqualified two-dimensional code 122 is located, at least a portion of the rejection portion 360 (specifically, the second clamping component 364 of the rejection portion 360) can selectively extend into the accommodating space 340a. In this way, the second clamping component 364 can directly and accurately act on the clamped identification tape segment 120 without changing the position or direction of the identification tape segment 120, thereby improving the efficiency and accuracy of the rejection operation.

[0068] In addition, in some specific embodiments of the present application, the removal portion 360 is arranged at the midline position of the first clamping component 340 in the width direction of the main body. It can be understood that the removal portion 360 is arranged at the symmetrical midline of the two first clamping segments and the symmetrical midline position of the two second clamping segments to ensure the positioning consistency of the second clamping component 364 of the removal portion 360 and the first clamping component 340, so as to ensure the positioning accuracy of the second clamping component 364 to the identification band segment 120.

[0069] like Figure 2 As shown, according to some embodiments of the present application, the main body portion includes: a first plate 322 and a second plate 324 that are opposite and spaced apart in a first direction, a first clamping component 340 is provided on the side of the first plate 322 facing away from the second plate 324, and a removal portion 360 is provided on the side of the second plate 324 facing the first plate 322, wherein a through hole 322a is formed on the first plate 322, and at least a portion of the removal portion 360 can be selectively penetrated by the through hole 322a and extend into the accommodating space 340a.

[0070] Specifically, the first plate 322 and the second plate 324 can be arranged opposite to each other and spaced apart in a first direction, and the first direction can be consistent with the extension direction of the rejection portion 360. The double-plate structure of the first plate 322 and the second plate 324 can provide stable structural support and divide the working areas of different components. For example, the side of the first plate 322 away from the second plate 324 can be constructed as a first working area, and the area between the first plate 322 and the second plate 324 can be constructed as a second working area. The first clamping component 340 is arranged on the side of the first plate 322 away from the second plate 324, and the first clamping component 340 is arranged in the first working area. The first clamping component 340 can directly face the identification tape 100 to be processed, which is convenient for grasping and clamping operations, and the second working area can be used for the rejection portion 360 to reject the identification tape segment 120, etc. Among them, the first plate 322 has a through hole 322a that penetrates in the first direction, and the second clamping part 364 of the removal part 360 can be penetrated by the through hole 322a to extend from the second working area into the accommodating space 340a of the first working area to directly clamp the identification band segment 120 in the first working area, and after the second clamping part 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 clamping part 364 and the pump body 362 can smoothly remove the identification band segment 120 together.

[0071] It should be pointed out that in the embodiment of the present application, by cleverly utilizing the spatial relationship between the first plate 322 and the second plate 324, as well as the setting of the through hole 322a, good cooperation between the rejection part 360 and the first clamping part 340 is achieved. On the one hand, the efficiency and accuracy of the rejection operation can be improved. On the other hand, the structural compactness and stability of the entire rejection part 300 can be improved, and the installation flexibility and working reliability of the rejection part 300 can be enhanced. On the third hand, it is also convenient for the subsequent maintenance and maintenance of the rejection part 360 and the first clamping part 340, which can improve maintenance efficiency and save maintenance costs.

[0072] like Figure 2 As shown, according to some embodiments of the present application, the main body also includes: a groove body 326, the groove body 326 is arranged between the first plate 322 and the second plate 324, and is located at the bottom end of the first plate 322 and the second plate 324, the groove body 326 is separated from the removal portion 360, and the groove body 326 has a collection cavity 326a, and the collection cavity 326a is open toward the removal portion 360.

[0073] Specifically, the groove body 326 has a certain length in the first direction, and the two ends of the groove body 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 groove body 326 can cover the area between the first plate 322 and the second plate 324, so that the groove body 326 can easily receive the marking tape segment 120 rejected from the rejection part 360, and the groove body 326 maintains a certain interval with the rejection part 360, which can ensure that the rejection part 360 has enough space to move during the rejection process without interfering with the groove body 326, thereby improving the working reliability and stability of the rejection part 360. Among them, the collecting chamber 326a of the trough body 326 is open toward the rejecting part 360, so that the rejected marking tape segments 120 can fall into the collecting chamber 326a smoothly without being scattered in other parts of the device. The rejected unqualified marking tape segments 120 are collected and stored by the collecting chamber 326a, and these unqualified products are processed centrally, which can facilitate subsequent classification, recycling or processing work, thereby improving the efficiency and cleanliness of the entire production line.

[0074] It should be pointed out that the above-mentioned groove body 326 can be manufactured and formed separately, or can be integrally formed with the first plate 322, the second plate 324, etc. For example, the groove body 326 can be constructed as an integral part with the first plate 322, and the second plate 324 is constructed as a separate component. The groove body 326 can also be constructed as an integral part with the second plate 324, and the first plate 322 is constructed as a separate component. The groove body 326 can also be constructed as an integral part with the first plate 322 and the second plate 324. The three are integrally formed, and the present application does not limit this.

[0075] In addition, in some specific embodiments of the present application, the width dimensions of the trough body 326, the first plate 322 and the second plate 324 are constructed to be equal to ensure that the trough body 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 the present application, the winding device 1000 further includes: a coding member, which is suitable for engraving a two-dimensional code 122 on each of the plurality of identification tape segments 120 for detection by the detection member 200 .

[0077] Specifically, the engraving member can engrave the two-dimensional code 122 storing important manufacturing information such as the production date, serial number, batch number, etc. of the battery cell on the surface of multiple identification tape segments 120 by laser engraving or other methods, so as to be used for subsequent traceability, management and quality control. By engraving the two-dimensional code 122 on the identification tape 100, it is convenient to realize the automatic collection and processing of information, thereby improving the production efficiency and accuracy. In addition, 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 an unqualified two-dimensional code 122 (such as blur, misalignment, missing, etc.) is detected, the rejection mechanism can be triggered, and the identification tape segment 120 where the unqualified two-dimensional code 122 is located is rejected from the entire roll of identification tape 100 by the rejection member 300. In this way, the winding device 1000 has comprehensive functions, which can not only realize the winding and identification of the battery cell, but also ensure the accuracy and reliability of the identification information.

[0078] like Figure 1 As shown, according to some embodiments of the present application, the winding device 1000 further includes: a cutting piece 400, which is disposed at a cutting station and is suitable for cutting and separating the plurality of identification tape segments 120 according to preset lengths.

[0079] Specifically, the cutting piece 400 is used to cut and separate the identification tape segment 120 from the entire identification tape 100. After the two-dimensional code 122 of the identification tape segment 120 is detected by the detection piece 200, the identification tape segment 120 where the two-dimensional code 122 passes the detection can be cut by the cutting piece 400 and enter the subsequent processing process, while the identification tape segment 120 where the two-dimensional code 122 fails the detection can be cut and rejected by the cutting piece 400 and the rejection piece 300. Exemplarily, the cutting piece 400 can be configured as a cutter, and the cutting with a cutter 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 costs.

[0080] In addition, if Figure 4 As shown, in some specific embodiments of the present application, a positioning hole 120a is provided between two adjacent marking tape segments 120 for positioning the marking tape segments 120 to improve the convenience and accuracy of cutting, clamping and removing the marking tape segments 120.

[0081] Furthermore, in some other specific embodiments of the present application, the winding device 1000 further includes: Figure 1 The positioning hole identification member 500 shown is used to identify the positioning hole 120a on the identification tape 100, and feed back the identification data to the control system to control the first clamping component 340 to clamp the identification tape segment, and control the rejection part 360 to selectively clamp, reject, etc. the identification tape segment.

[0082] In some other specific embodiments of the present application, the winding device 1000 also includes a unwinding member 600 and a roller 700, wherein the identification tape engraved with a QR code 122 is wound on the unwinding member 600, and the unwinding member 600 can be rotated to unwind the identification tape. By setting the unwinding member 600, the stability and accuracy of the unwinding of the identification tape can be improved, so as to improve 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 member 600, it can be buffered by the roller 700 to improve the tension stability of the identification tape's own material, surface flatness, etc., so that 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, according to the winding device 1000 of the present application, the process flow of the identification tape is: unwinding → caching over the roller → identification of the positioning hole 120a → detection of the 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 discarded.

[0084] According to the control method of the winding device of the second aspect embodiment of the present application, the control method of the winding device includes: obtaining the detection result of the two-dimensional code 122 on the identification tape segment 120; if the detection is qualified, cutting and gluing the identification tape segment 120 where the detected two-dimensional code 122 is located; if the detection is unqualified, controlling the rejection part 300 to reject the identification tape segment 120 where the detected two-dimensional code 122 is located.

[0085] Specifically, according to the control method of the winding device of the embodiment of the present application, after obtaining the detection result of the QR code 122 on the identification tape segment 120, the identification tape segment 120 where the detected QR code 122 is located is processed differently according to different detection results. When the QR code 122 is detected to be qualified, the identification tape segment 120 where the detected QR code 122 is located is cut and glued so that the qualified product can be subsequently bonded to the battery cell; when the QR code 122 is detected to be unqualified, the identification tape segment 120 where the detected QR code 122 is located is cut and discarded so as to avoid defective products from flowing into the next process. By automatically processing the detection result of the QR code 122, real-time monitoring and precise control of the winding process can be achieved, the quality and content accuracy of the QR code 122 applied to the battery cell can be improved, and the information traceability and quality control of the battery cell can be improved.

[0086] According to some embodiments of the present application, the detection of the QR code 122 includes: detecting whether the clarity of the QR code 122 meets the standards, and detecting whether the storage information of the QR code 122 is complete and correct; when the clarity of the QR code 122 meets the standards and the storage information is complete and correct, the detected QR code 122 is determined to be qualified, otherwise, the detected QR code 122 is determined to be unqualified.

[0087] Specifically, the detection of the QR code 122 may include two aspects. First, the control system will evaluate the clarity of the QR code 122. If the QR code 122 is too blurred or damaged, the scanning component may not be able to correctly decode the information therein. Therefore, during the detection process, the control system may check whether the lines of the QR code 122 are clear, whether the edges are sharp, and whether there are obvious stains or scratches, etc., to detect whether the clarity of the QR code 122 meets the standards; second, the control system may also verify the information stored in the QR code 122, including checking the integrity of the information (i.e., whether the QR code 122 contains all necessary fields and data) and accuracy (i.e., whether the data is correct, without loss or error). This detection can ensure that the information represented by the QR code 122 is valuable for subsequent production processes. 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 deemed valid, and the identification tape segment 120 in which it is located is allowed to enter the subsequent production process (such as gluing, 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 remove the identification tape segment 120 in which the two-dimensional code 122 is located from the entire roll of identification tape 100 to avoid it affecting the quality of the product, thereby improving the traceability and quality control level of the product.

[0088] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may 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 skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A winding device, characterized in that: include: An identification tape (100), the identification tape (100) comprising a plurality of identification tape (100) segments connected in sequence, each of the identification tape (100) segments being provided with a two-dimensional code (122), each of the two-dimensional codes (122) being used to store manufacturing information of a battery cell; A detection member (200), the detection member (200) being used to detect whether a plurality of the two-dimensional codes (122) are qualified; A rejecting member (300) is used to reject the segment of the identification tape (100) where the unqualified two-dimensional code (122) detected by the detection member (200) is located.

2. The winding device according to claim 1, characterized in that The rejecting member (300) comprises: A main body, one end of which is provided with a first clamping component (340), the first clamping component (340) being used to clamp the identification tape (100) and move the identification tape (100) to a cutting station so as to cut and separate a plurality of segments of the identification tape (100); A rejecting portion (360) is telescopically arranged at the other end of the main body, and the rejecting portion (360) can be selectively moved to the first clamping component (340), and is suitable for transferring the segment of the identification tape (100) where the unqualified two-dimensional code (122) is located to the other end of the main body for rejection.

3. The winding device according to claim 2, characterized in that The rejecting part (360) comprises: A pump body (362), one end of the pump body (362) being connected to the other end of the main body, and a cavity open toward the other end of the pump body (362) being formed in the pump body (362); A second clamping component (364) is retractably 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 clamp and remove the segment of the identification tape (100) where the unqualified two-dimensional code (122) is located.

4. The winding device according to claim 3, characterized in that: The contour shapes of the pump body (362) and the second clamping member (364) are both cylindrical, and the cross-sectional area of ​​the second clamping member (364) is smaller than the cross-sectional area of ​​the pump body (362).

5. The winding device according to claim 3, characterized in that: One side of the identification tape (100) in the thickness direction is configured as a bonding side, and the other side is provided with the two-dimensional code (122). The second clamping component (364) has a gas channel therein, and an outlet (364a) of the gas channel is located on a surface of the second clamping component (364) facing the bonding side, and the gas in the gas channel is suitable for flowing toward the bonding side through the outlet (364a).

6. The winding device according to claim 2, characterized in that: 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 arranged opposite to each other in the height direction of the main body, and the two are suitable for cooperating to clamp the identification band (100), wherein the first clamping jaw (342) includes two first clamping sections arranged at intervals in the width direction of the main body, and the second clamping jaw (344) includes two second clamping sections arranged at intervals in the width direction of the main body, and the two second clamping sections and the two first clamping sections jointly define a accommodating space (340a), and at least a portion of the rejection portion (360) can selectively extend into the accommodating space (340a).

7. The winding device according to claim 6, characterized in that The main body portion includes: a first plate (322) and a second plate (324) which are opposite to each other and spaced apart in a first direction, the first clamping component (340) is provided on a side of the first plate (322) facing away from the second plate (324), and the removal portion (360) is provided on a side of the second plate (324) facing the first plate (322), wherein a through hole (322a) is formed on the first plate (322), and at least a portion of the removal portion (360) can be selectively passed through the through hole (322a) and extended into the accommodating space (340a).

8. The winding device according to claim 7, characterized in that Also includes: A trough body (326), wherein the trough body (326) is disposed between the first plate (322) and the second plate (324), and is located at the bottom ends of the first plate (322) and the second plate (324), wherein the trough body (326) is spaced apart from the rejection portion (360), and wherein the trough body (326) has a collection chamber (326a), and wherein the collection chamber (326a) is open toward the rejection portion (360).

9. The winding device according to claim 1, characterized in that: Also includes: A code engraving member, wherein the code engraving member is suitable for engraving the two-dimensional code (122) on a plurality of segments of the identification tape (100) for detection by the detection member (200).

10. The winding device according to claim 1, characterized in that Also includes: A cutting piece (400) is arranged at a cutting station and is suitable for cutting and separating a plurality of marking tape (100) segments according to preset lengths.

11. A control method for a winding device, characterized in that: include: Obtaining a detection result of a two-dimensional code (122) on a segment of the identification tape (100); If the detection is qualified, the section of the identification tape (100) where the detected two-dimensional code (122) is located is cut and glued; If the detection fails, the segment of the identification tape (100) where the detected two-dimensional code (122) is located is cut off and discarded.

12. The control method of the winding device according to claim 11, characterized in that: The detection of the two-dimensional code (122) includes: Detecting whether the clarity of the two-dimensional code (122) meets the standard, and detecting whether the stored information of the two-dimensional code (122) is complete and correct; When the clarity of the two-dimensional code (122) meets the standard and the stored information is complete and correct, the detection two-dimensional code (122) is determined to be qualified; otherwise, the detection two-dimensional code (122) is determined to be unqualified.

Images