A control method for feeding a pole piece in a single roll, a winding device and a storage medium

Abstract

The present application proposes a control method, winding device and storage medium for feeding a pole piece in a single roll, and the control method for feeding a pole piece in a single roll includes: detecting whether the next section of the pole piece is qualified; in response to the next section of the pole piece being a qualified section pole piece, cutting and winding the qualified section pole piece; in response to the next section of the pole piece being a bad section pole piece, single-rolling the bad section pole piece; wherein the step of single-rolling the bad section includes: the cutting component avoids the single-roll component, the single-roll component extends to the conveying route of the pole piece; the feeding component sends out the bad section pole piece; the single-roll component winds the bad section pole piece; when the single roll is completed, the feeding component clamps the head of the qualified section pole piece, and the cutting component cuts off the tail of the bad section pole piece; the feeding component opens and retreats a compensation distance, the feeding component clamps the head of the qualified section pole piece; the cutting component avoids the feeding component, and the feeding component sends out the qualified section pole piece. The feeding component retreats a compensation distance, which can avoid feeding failure caused by insufficient travel.

Description

Technical Field

[0001] The present application relates to the field of battery cell winding, and in particular to a control method for feeding a single pole piece, a winding device and a storage medium. Background Art

[0002] The winding process of the battery cell winds the pole pieces and diaphragms through a winding assembly.

[0003] In the traditional winding process, the pole pieces supplied in the form of material strips are transported intermittently. In order to improve the winding efficiency, the follow-up cutting method is often used. The pole pieces are continuously transported forward, and the feeding assembly and the cutting assembly follow the movement of the pole pieces until they are synchronized with the pole pieces. The feeding assembly clamps the pole pieces. When the winding assembly winds enough pole pieces, the cutting assembly cuts off the pole pieces. Then the fully loaded winding assembly is unloaded or switched with the unloaded winding assembly. The feeding assembly delivers the new pole pieces to the winding assembly. Finally, the feeding assembly and the cutting assembly are reset for the next follow-up cutting.

[0004] In the traditional winding process, if a section of the electrode is defective, the entire battery cell containing the section of the electrode can only be discarded after the winding is completed. In order to reduce waste, the single-roll method is often used. An additional single-roll component is set between the cutting component and the winding component. During normal winding, the single-roll component is hidden. When a defective electrode is detected, the single-roll component extends to receive the electrode sent by the feeding component. After receiving the defective section of the electrode, the cutting component cuts off the electrode, the single-roll component is hidden, and the feeding component and the cutting component re-perform the normal winding action.

[0005] At present, when the follow-up cutting method is combined with the single-roll method, the problem of film feeding failure often occurs. The reason is that when the single roll is used, the follow-up cutting route of the cutting component will interfere with the extended single-roll component, so the cutting component and the film feeding component can only perform fixed cutting, which will cause the distance between the cutting component and the film feeding component to decrease. Accordingly, when the next normal follow-up cutting is performed, the travel of the film feeding component is not enough to feed the pole piece into the winding component, resulting in film feeding failure.

[0006] Although reserving a longer stroke for the sheet feeding assembly can avoid this problem, it will cause the stroke of the sheet feeding assembly to increase during normal winding, making the free section of the pole piece head too long, and the pole piece is easily bent and deformed under its own weight, resulting in sheet feeding failure. Summary of the invention

[0007] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a control method for feeding a pole piece in a single roll, a winding device and a storage medium, and the control method for feeding a pole piece in a single roll can avoid the problem of failure of the feeding assembly to feed the pole piece due to insufficient travel of the feeding assembly or excessive free section of the pole piece head after executing a single roll of a bad section of the pole piece.

[0008] The control method for feeding a pole piece in a single roll according to the present application includes:

[0009] Check whether the next section of the pole piece is qualified;

[0010] In response to the next section of the pole piece being a qualified section of the pole piece, performing follow-up cutting and winding on the qualified section of the pole piece;

[0011] In response to the next section of the electrode piece being a bad section electrode piece, single-winding the bad section electrode piece;

[0012] The step of single-winding the defective electrode segment includes:

[0013] The cutting assembly avoids the single-roll assembly, and the single-roll assembly extends to the conveying route of the pole piece;

[0014] The film delivery component delivers the defective section of the electrode;

[0015] The single-roll assembly is wound around the defective section pole piece;

[0016] When a single roll is completed, the sheet feeding assembly clamps the head of the qualified segment electrode sheet, and the cutting assembly cuts off the tail of the defective segment electrode sheet;

[0017] The single-roll assembly retracts, the sheet-feeding assembly opens and retreats a compensation distance, and the sheet-feeding assembly clamps the head of the qualified segment electrode;

[0018] The cutting assembly avoids the sheet feeding assembly, and the sheet feeding assembly feeds out the qualified segment electrode sheet.

[0019] According to the control method for feeding a single roll of pole pieces provided by the present application, at least the following technical effects are achieved: in the traditional single roll method, after the feeding component clamps the qualified segment of the pole piece and the cutting component cuts off the tail of the defective segment of the pole piece, the feeding component will directly carry the qualified segment of the pole piece to the winding component. However, when the single roll method is combined with the follow-up cutting method, the distance between the feeding component and the cutting component is lower than the preset range when the single roll is completed, so that the free section of the head of the qualified segment of the pole piece is shorter, resulting in the stroke of the feeding component being insufficient to complete the feeding. In the control method for feeding a single roll of pole pieces of the present application, the feeding component opens again and retreats a compensation distance after clamping the qualified segment of the pole piece, so that the free section length of the head of the qualified segment of the pole piece can meet the stroke requirement of the feeding component. The control method for feeding a single roll of pole pieces can avoid the failure of feeding due to insufficient stroke of the feeding component. On the other hand, the present application solves the problem of insufficient stroke by retreating the compensation distance, so there is no need to set an excessively long stroke for the feeding component. The control method for feeding a single roll of pole pieces can avoid the problem of failure of feeding due to excessively long free section of the head of the pole piece.

[0020] According to some embodiments of the present application, the step of performing follow-up cutting and winding on the qualified segment pole piece includes:

[0021] The cutting component avoids the sheet feeding component, and the sheet feeding component feeds out the qualified segment electrode piece;

[0022] The winding assembly winds the qualified segment pole piece, the feeding assembly retreats to a follow-up clamping waiting position, and the cutting assembly retreats to a follow-up cutting waiting position;

[0023] When winding is completed, the sheet feeding assembly and the cutting assembly follow the pole piece at the moving speed of the pole piece;

[0024] When the speeds of the sheet feeding assembly, the cutting assembly and the pole piece are synchronized, the sheet feeding assembly clamps the next section of the pole piece, and the cutting assembly cuts off the pole piece.

[0025] According to some embodiments of the present application, during the process of the sheet feeding assembly opening and retreating a compensation distance, the sheet feeding assembly retreats to the chasing and clamping waiting position.

[0026] According to some embodiments of the present application, during the process of the sheet feeding assembly feeding out the qualified segment pole piece, the cutting assembly moves to a follow-up cutting end position to avoid the sheet feeding assembly.

[0027] According to some embodiments of the present application, the step of the sheet feeding assembly feeding out the defective section electrode sheet includes:

[0028] The sheet feeding assembly delivers the head of the bad section pole piece to the sheet feeding assembly, the sheet feeding assembly clamps the bad section pole piece, and the sheet feeding assembly is located between the single roll assembly and the winding assembly;

[0029] Alternatively, the sheet feeding assembly feeds the head of the defective segment electrode sheet to the single roll assembly, and the single roll assembly clamps the defective segment electrode sheet.

[0030] According to some embodiments of the present application, the step of the sheet feeding assembly feeding out the qualified segment pole piece includes: the sheet feeding assembly feeding the head of the qualified segment pole piece to the sheet input assembly, and the sheet input assembly feeding the qualified segment pole piece to the winding assembly.

[0031] According to some embodiments of the present application, the distance between the sheet feeding assembly in the clamping waiting position and the cutting assembly in the cutting waiting position is L1, and the distance between the sheet feeding assembly and the sheet feeding assembly when delivering the qualified segment pole piece is L2, and L1 is greater than L2.

[0032] According to some embodiments of the present application, the chasing and clamping waiting position has a normally open component, and the normally open component drives the film feeding component to remain open.

[0033] The winding equipment provided in the present application at least comprises a winding assembly, a single roll assembly, a sheet feeding assembly and a cutting assembly, and the winding equipment is used to implement the control method for the single roll feeding of the pole piece described in the present application.

[0034] According to the computer-readable storage medium provided in the present application, the computer-readable storage medium stores a program, and when the program is executed by a processor, the control method for single-roll feeding of pole pieces described in the present application is implemented.

[0035] The winding device provided in the present application is used to implement the control method for single-roll feeding of pole pieces described in the present application, and the computer-readable storage medium provided in the present application is used to implement the control method for single-roll feeding of pole pieces described in the present application. Therefore, the winding device and computer-readable storage medium provided in the present application have the beneficial effects brought by the control method for single-roll feeding of pole pieces, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] 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:

[0037] Figure 1 It is a schematic diagram of the overall flow of a control method for feeding a pole piece in a single roll according to some embodiments of the present application;

[0038] Figure 2 It is a specific flow chart of a control method for feeding a pole piece in a single roll according to some embodiments of the present application;

[0039] Figure 3 is a schematic diagram of the action process of the winding device in some embodiments of the present application;

[0040] Figure 4 is a schematic diagram of the action process of the winding device in some embodiments of the present application;

[0041] Figure 5 It is a schematic diagram of the operation process of the winding equipment in some embodiments of the present application.

[0042] Reference numerals:

[0043] The sheet feeding assembly 100 , the cutting assembly 200 , the single roll assembly 300 , the winding assembly 400 , the normally open assembly 500 , and the sheet feeding assembly 600 . DETAILED DESCRIPTION

[0044] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0045] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are 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 device or element referred to 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.

[0046] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0047] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0048] The control method for feeding a pole piece in a single roll according to the present application includes:

[0049] Step S100: Check whether the next section of the pole piece is qualified;

[0050] Step S200: in response to the next section of the pole piece being a qualified section of the pole piece, performing follow-up cutting and winding on the qualified section of the pole piece;

[0051] Step S300: in response to the next section of the electrode being a defective section of the electrode, single-winding the defective section of the electrode;

[0052] Further references Figure 1 , wherein step S300 specifically includes:

[0053] Step S310: the cutting assembly 200 avoids the single roll assembly 300, and the single roll assembly 300 extends to the conveying route of the electrode;

[0054] Step S320: the film feeding assembly 100 feeds out the defective electrode film;

[0055] Step S330: the single-winding assembly 300 winds up the defective section pole piece;

[0056] Step S340: when a single roll is completed, the feeding assembly 100 clamps the head of the qualified segment of the electrode, and the cutting assembly 200 cuts off the tail of the defective segment of the electrode;

[0057] Step S350: the single-roll assembly 300 retracts, the sheet-feeding assembly 100 opens and retreats a compensation distance, and the sheet-feeding assembly 100 clamps the head of the qualified segment electrode;

[0058] Step S360: the cutting assembly 200 avoids the sheet feeding assembly 100, and the sheet feeding assembly 100 delivers the qualified segment electrode.

[0059] "Front" and "rear" are defined by the conveying direction of the electrode. The direction in the same direction as the electrode conveying direction is the forward direction, and the direction in the opposite direction to the electrode conveying direction is the rear direction.

[0060] "The single-roll assembly 300 retracts" means that the single-roll assembly 300 carries the wound defective section of the electrode and exits the electrode conveying route to avoid interference with the follow-up winding.

[0061] Whether in the traditional follow-up cutting method or the single-winding method, when the feeding assembly 100 clamps the next section of the pole piece and the cutting assembly 200 cuts off the tail of the previous section of the pole piece, the feeding assembly 100 will directly bring the next section of the pole piece to the winding assembly 400 to start a new winding.

[0062] During the film feeding process, the film feeding assembly 100 will approach the cutting assembly 200, so that the head of the next section of the electrode sheet passes through the cutting assembly 200. Since the film feeding assembly 100 cannot interfere with the cutting assembly 200 during the film feeding process, the distance between the film feeding assembly 100 and the cutting assembly 200 when the cutting assembly 200 cuts off the electrode sheet determines the distance that the film feeding assembly 100 can feed the electrode sheet. This distance also determines the length of the free section of the head of the electrode sheet clamped by the film feeding assembly 100.

[0063] However, when the follow-up cutting method is combined with the single-roll method, during the single-roll process, the distance between the sheet feeding assembly 100 and the cutting assembly is lower than the preset range when the single roll is completed, so that the free section of the head of the qualified segment of the pole piece is shorter. This results in the insufficient stroke of the sheet feeding assembly 100 to complete the sheet feeding, resulting in sheet feeding failure.

[0064] In response to this problem, the control method for feeding a pole piece in a single roll of the present application adds an extra step S350 in the single roll process. After the feeding assembly 100 clamps the qualified segment pole piece and the cutting assembly 200 cuts off the pole piece, the feeding assembly 100 is driven to open again and retreat a compensation distance to play a compensation role, so that the free segment length of the head of the qualified segment pole piece can meet the stroke requirement of the feeding assembly 100. The control method for feeding a pole piece in a single roll can avoid the failure of feeding due to insufficient stroke of the feeding assembly 100. On the other hand, the present application solves the problem of insufficient stroke by retreating the compensation distance, so there is no need to set an excessively long stroke for the feeding assembly. The control method for feeding a pole piece in a single roll can avoid the problem of failure of feeding due to excessively long free segment of the head of the pole piece.

[0065] It can be understood that in the winding process, the electrode sheets are transported in the form of a material strip, the defective parts in the material strip are called defective segment electrode sheets, and the qualified parts in the material strip are called qualified segment electrode sheets. In step S330, the single-roll component 300 will wind up all the defective segment electrode sheets. Therefore, in the next step, the electrode sheet clamped by the sheet feeding component 100 is a qualified segment electrode sheet, which can be directly sent to the winding component 400 for winding through step S360.

[0066] Continue to refer to Figure 2 According to some embodiments of the present application, step S200 specifically includes:

[0067] Step S210: the cutting assembly 200 avoids the sheet feeding assembly 100, and the sheet feeding assembly 100 delivers a qualified segment of the electrode;

[0068] Step S220: the winding assembly 400 winds the qualified segment of the pole piece, the feeding assembly 100 retreats to the follow-up clamping waiting position, and the cutting assembly 200 retreats to the follow-up cutting waiting position;

[0069] Step S230: When the winding is completed, the sheet feeding assembly 100 and the cutting assembly 200 follow the pole piece at the moving speed of the pole piece;

[0070] Step S240: When the speeds of the sheet feeding assembly 100, the cutting assembly 200 and the pole piece are synchronized, the sheet feeding assembly 100 clamps the next section of the pole piece, and the cutting assembly 200 cuts off the pole piece.

[0071] Next, refer to Figure 3 and Figure 5 In the process of winding and following cutting, the movement route of the sheet feeding component 100 is defined as the following clamping route, and the movement route of the cutting component 200 is defined as the following cutting route. The following clamping waiting position refers to the waiting position where the sheet feeding component 100 waits to start following clamping during the winding process of the winding component 400, and the following cutting waiting position refers to the waiting position where the cutting component 200 waits to start following cutting during the winding process of the winding component 400.

[0072] It can be understood that the follow-up cutting and winding of the current electrode starts with the feeding assembly 100 clamping the current electrode and the cutting assembly 200 cutting the electrode between the current electrode and the previous electrode. First, the electrode is fed, and the feeding assembly 100 gradually approaches the cutting assembly 200 during feeding, so that the free section of the head of the current electrode passes through the cutting assembly 200 until it enters the winding assembly 400. Subsequently, the feeding assembly 100 and the cutting assembly 200 are reset, waiting for the winding assembly 400 to wind. When the winding is completed, the feeding assembly 100 performs follow-up clamping and the cutting assembly 200 performs follow-cutting, completing a follow-up cutting and winding process. At this time, whether to perform single winding or follow-up cutting and winding is determined based on whether the next electrode segment is a qualified segment electrode segment or a defective segment electrode segment.

[0073] The present application also provides a winding device, which at least includes a winding assembly 400, a single roll assembly 300, a film feeding assembly 100 and a cutting assembly 200. The winding device is used to implement the control method for single roll feeding of pole pieces provided in the present application. Figures 3 to 5 The layout and operation process of some embodiments of the winding device are shown.

[0074] As mentioned above, the follow-up clamp waiting position is the starting position of the film feeding assembly when the follow-up clamp is normally performed. When in the follow-up clamp waiting position, the travel of the film feeding assembly 100 can certainly meet the film feeding requirements. Therefore, in some embodiments, during the process of the film feeding assembly 100 opening and retreating the compensation distance in step S350, the film feeding assembly 100 also retreats to the follow-up clamp waiting position. In this way, when performing step S360, the film feeding assembly 100 can directly reuse its own follow-up clamping route during the follow-up cutting and winding, thereby helping to simplify the relevant mechanical structure design and program design for driving the film feeding assembly 100 to move.

[0075] In the process of the sheet feeding assembly 100 feeding out the qualified segmented electrode sheet, the cutting assembly 200 needs to avoid it accordingly. In some embodiments, the cutting assembly 200 moves to the chasing cutting end position to avoid the sheet feeding assembly 100.

[0076] It is understandable that when executing the chasing cutting motion to cut the pole piece, the speed of the cutting assembly 200 is synchronized with the speed of the pole piece, so after the cutting is completed, the cutting assembly 200 needs to gradually decelerate, and then accelerate in the reverse direction to reset to the chasing cutting waiting position. The chasing cutting end position refers to the position where the cutting assembly 200 is located when it decelerates to a stationary state, that is, the most forward position of the cutting assembly 200 during the chasing cutting process.

[0077] Whether in step S210 or step S360, the cutting component 200 avoids the sheet feeding component 100 at the end position of the follow-up cutting, which means that the avoidance of the cutting component 200 in the single-roll process can directly reuse the follow-up cutting route of the cutting component 200 during the follow-up cutting winding, thereby helping to simplify the mechanical structure design and program design of driving the follow-up cutting movement of the cutting component 200. At the same time, the cutting component 200 avoids the sheet feeding component 100 at the end position of the follow-up cutting, which can maximize the avoidance effect of the cutting component 200, reduce the free section length required for sheet feeding, and avoid the situation where the free section of the pole piece head is too long, the pole piece bends and deforms under its own weight, and causes the sheet feeding failure.

[0078] In the present application, the sheet feeding assembly 100 can feed out the bad section electrode piece in different ways. For example, in some embodiments, the step of the sheet feeding assembly 100 feeding out the bad section electrode piece includes: the sheet feeding assembly 100 feeds the head of the bad section electrode piece to the sheet feeding assembly 600, the sheet feeding assembly 600 clamps the bad section electrode piece, and the sheet feeding assembly 600 is located between the single roll assembly 300 and the winding assembly 400. After that, the single roll assembly 300 winds the bad section electrode piece again.

[0079] Alternatively, in some other embodiments, the sheet feeding assembly 100 feeds the head of the defective segment of the pole sheet to the single roll assembly 300, and the single roll assembly 300 clamps the defective segment of the pole sheet.

[0080] Similarly, in the present application, the sheet feeding assembly 100 can deliver qualified segment pole pieces in different ways. For example, in some embodiments, the step of the sheet feeding assembly 100 delivering qualified segment pole pieces includes: the sheet feeding assembly 100 delivers the head of the qualified segment pole piece to the sheet input assembly 600, and the sheet input assembly 600 delivers the qualified segment pole piece to the winding assembly 400. The process of delivering qualified segment pole pieces and delivering defective segment pole pieces uses the sheet input assembly 600, which can simplify the mechanical structure. At this time, the sheet input assembly 600 can also have a deviation correction function. By adjusting the position of the sheet input assembly 600, the posture of the qualified segment pole piece when entering the winding assembly 400 is adjusted, thereby improving the sheet feeding effect.

[0081] Of course, the sheet feeding assembly 100 can also directly feed the qualified segment pole sheet into the winding assembly 400 without passing through the sheet feeding assembly 600.

[0082] As mentioned above, since the sheet feeding assembly 100 cannot interfere with the cutting assembly 200, the distance that the sheet feeding assembly 100 can feed the pole piece cannot exceed the length of the free section of the pole piece head.

[0083] Specifically, in the embodiment where the sheet feeding assembly 100 delivers a qualified segment electrode sheet through the sheet entry assembly 600, in order to ensure successful sheet feeding, the free section length of the head of the qualified segment electrode sheet clamped by the sheet feeding assembly 100 must be greater than the minimum distance between the sheet feeding assembly 100 and the sheet entry assembly 600 when feeding the sheet.

[0084] The distance between the sheet feeding component 100 in the clamping waiting position and the cutting component 200 in the cutting waiting position is defined as L1. L1 determines the free length of the head of the qualified segment pole piece. The distance between the sheet feeding component 100 and the sheet feeding component 600 when delivering the qualified segment pole piece is defined as L2. L1 must be greater than L2 to avoid sheet feeding failure due to insufficient stroke of the sheet feeding component.

[0085] Please refer to Figures 3 to 5 , Figure 3 , Figure 4 , Figure 5It respectively reflects the relative position relationship of each part in the winding device in step S330, step S350 and step S360. Figures 3 to 5 In the embodiment, the film feeding assembly 100 includes a film feeding clamp, the cutting assembly 200 includes a cutter, the single roll assembly 300 includes a single roll winding needle, the winding assembly 400 includes a winding winding needle, and the winding device further includes a film feeding assembly 600, and the film feeding assembly 600 includes a deviation correction roller. In the figure, the labels A, B, C, and D are used in conjunction with the center line to respectively identify the position of the follow-up clamp waiting position, the follow-up cutting waiting position, the position of the film feeding assembly 100 when sending out the qualified segment of the pole piece, and the position of the follow-up cutting end position on the conveying route of the pole piece.

[0086] Figure 3 In the process, the film feeding assembly 100 has not yet performed compensation, and the distance between the film feeding assembly 100 and the cutting assembly 200 in the follow-up cutting waiting position is L3, and L3 is smaller than L2, resulting in film feeding failure. Figure 4 In the process, the film feeding assembly 100 retreats the compensation distance to reach the clamping waiting position, and L1 is greater than L2, thereby meeting the film feeding requirements.

[0087] According to some embodiments of the present application, the film feeding assembly 100 remains normally open when in the clamping waiting position. For this reason, the film feeding assembly 100 cannot directly retreat to the clamping waiting position when a single roll is rolled, otherwise it cannot clamp the pole piece when cutting. Specifically, the clamping waiting position has a normally open assembly 500, and the normally open assembly 500 drives the film feeding assembly 100 to remain open.

[0088] The present application also provides a computer program product or a computer program, which includes computer instructions stored in a computer-readable storage medium. The processor of a computer device can read the computer instructions from the above-mentioned computer-readable storage medium, and the processor executes the computer instructions, thereby realizing the control method embodiment of the single-roll feeding of pole pieces provided in the present application.

[0089] It can be understood that the contents of the control method embodiment of the pole piece single-roll feeding provided in the present application are applicable to the embodiment of the winding device of the present application and / or the embodiment of the computer-readable storage medium of the present application, and the beneficial effects achieved are the same as the beneficial effects achieved by the control method embodiment of the pole piece single-roll feeding provided in the present application.

[0090] Reference below Figures 1 to 5 The control method for feeding a pole piece in a single roll according to the present application is described in detail with a specific embodiment. It is worth noting that the following description is only an exemplary description and is not a specific limitation of the present application. This specific embodiment can also be replaced by the above-mentioned corresponding technical features or combined with the above-mentioned technical features.

[0091] Reference Figure 1 , the control method of feeding the pole piece in a single roll includes:

[0092] Step S100: Check whether the next section of the pole piece is qualified;

[0093] Step S200: in response to the next section of the pole piece being a qualified section of the pole piece, performing follow-up cutting and winding on the qualified section of the pole piece;

[0094] Step S300: In response to the next section of the electrode being a defective section of the electrode, single-winding the defective section of the electrode.

[0095] Further references Figure 2 , wherein step S200 specifically includes:

[0096] Step S210: the cutting assembly 200 moves to the follow-up cutting end position, the sheet feeding assembly 100 delivers the head of the qualified segment of the pole piece to the sheet feeding assembly 600, and the sheet feeding assembly 600 delivers the qualified segment of the pole piece to the winding assembly 400;

[0097] Step S220: the winding assembly 400 winds the qualified segment of the pole piece, and the cutting assembly 200 retreats to the follow-up cutting waiting position;

[0098] Step S230: When the winding is completed, the sheet feeding assembly 100 and the cutting assembly 200 follow the pole piece at the moving speed of the pole piece;

[0099] Step S240: When the speeds of the sheet feeding assembly 100, the cutting assembly 200 and the pole piece are synchronized, the sheet feeding assembly 100 clamps the next section of the pole piece, and the cutting assembly 200 cuts off the pole piece.

[0100] Wherein, step S300 specifically includes:

[0101] Step S310: the cutting assembly 200 avoids the single roll assembly 300, and the single roll assembly 300 extends to the conveying route of the electrode;

[0102] Step S320: the sheet-feeding assembly 100 delivers the head of the defective segment electrode sheet to the sheet-entering assembly 600, and the sheet-entering assembly 600 clamps the defective segment electrode sheet;

[0103] Step S330: the single-winding assembly 300 winds up the defective section pole piece;

[0104] Step S340: when a single roll is completed, the feeding assembly 100 clamps the head of the qualified segment of the electrode, and the cutting assembly 200 cuts off the tail of the defective segment of the electrode;

[0105] Step S350: the single-roll assembly 300 retracts, the sheet-feeding assembly 100 opens and retreats to the clamping waiting position, and the sheet-feeding assembly 100 clamps the head of the qualified segment electrode;

[0106] Step S360 : the cutting assembly 200 moves to the follow-up cutting end position, the sheet feeding assembly 100 delivers the head of the qualified segment of the pole piece to the sheet feeding assembly 600 , and the sheet feeding assembly 600 delivers the qualified segment of the pole piece to the winding assembly 400 .

[0107] In addition, the distance between the sheet feeding assembly 100 in the clamping waiting position and the cutting assembly 200 in the cutting waiting position is defined as L1, and the distance between the sheet feeding assembly 100 and the sheet feeding assembly 600 when delivering the qualified segment pole piece is defined as L2, and L1 is greater than L2.

[0108] The chasing clamp waiting position has a normally open component 500, which drives the film feeding component 100 to remain open.

[0109] 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.

[0110] 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.

[0111] In some selectable embodiments, the function / operation mentioned in the block diagram may not occur in the order mentioned in the operation diagram. For example, depending on the function / operation involved, the two boxes shown in succession can actually be executed substantially simultaneously or the boxes can sometimes be executed in reverse order. In addition, the embodiment presented and described in the flow chart of the application is provided by way of example, for the purpose of providing a more comprehensive understanding of technology. The disclosed method is not limited to the operation and logic flow presented herein. Selectable embodiments are expected, wherein the order of various operations is changed and the sub-operation of a part described as a larger operation is performed independently.

[0112] In addition, although the present application is described in the context of functional modules, it should be understood that, unless otherwise specified, one or more of the functions and / or features can be integrated into a single physical device and / or software module, or one or more functions and / or features can be implemented in a separate physical device or software module. It is also understood that a detailed discussion of the actual implementation of each module is unnecessary for understanding the present application. More specifically, in view of the properties, functions, and internal relationships of the various functional modules in the device disclosed herein, the actual implementation of the module will be understood within the conventional techniques of the engineer. Therefore, those skilled in the art can implement the present application set forth in the claims without excessive experimentation using ordinary techniques. It is also understood that the specific concepts disclosed are merely illustrative and are not intended to limit the scope of the present application, which is determined by the full scope of the attached claims and their equivalents.

Claims

1. A control method for feeding a single roll of a pole piece, characterized in that: include: Check whether the next section of the pole piece is qualified; In response to the next section of the pole piece being a qualified section of the pole piece, performing follow-up cutting and winding on the qualified section of the pole piece; In response to the next section of the electrode piece being a bad section electrode piece, single-winding the bad section electrode piece; The step of single-winding the defective electrode segment includes: The cutting assembly avoids the single roll assembly, and the single roll assembly extends to the conveying route of the pole piece; The film delivery component delivers the defective section of the electrode; The single-roll assembly is wound around the defective section pole piece; When a single roll is completed, the sheet feeding assembly clamps the head of the qualified segment electrode sheet, and the cutting assembly cuts off the tail of the defective segment electrode sheet; The single-roll assembly retracts, the sheet-feeding assembly opens and retreats a compensation distance, and the sheet-feeding assembly clamps the head of the qualified segment electrode; The cutting component avoids the sheet feeding component, and the sheet feeding component feeds out the qualified segment electrode piece; The step of performing follow-up cutting and winding on the qualified segment pole piece includes: The cutting component avoids the sheet feeding component, and the sheet feeding component feeds out the qualified segment electrode piece; The winding assembly winds the qualified segment pole piece, the feeding assembly retreats to a clamping waiting position, and the cutting assembly retreats to a cutting waiting position; During the process of the sheet feeding assembly opening and retreating the compensation distance, the sheet feeding assembly retreats to the clamping waiting position; The sheet feeding assembly is located between the single roll assembly and the winding assembly. The distance between the sheet feeding assembly in the clamping waiting position and the cutting assembly in the cutting waiting position is L 1 . When delivering the qualified segment pole piece, the distance between the sheet feeding assembly and the sheet feeding assembly is L 2 , and L 1 is greater than L 2 .

2. The control method for feeding a pole piece in a single roll according to claim 1, characterized in that: in, The step of performing follow-up cutting and winding on the qualified segment pole piece comprises: When winding is completed, the sheet feeding assembly and the cutting assembly follow the pole piece at the moving speed of the pole piece; When the speeds of the sheet feeding assembly, the cutting assembly and the pole piece are synchronized, the sheet feeding assembly clamps the next section of the pole piece, and the cutting assembly cuts off the pole piece.

3. The control method for feeding a pole piece in a single roll according to claim 2, characterized in that: When the sheet-feeding assembly delivers the qualified segment of the pole piece, the cutting assembly moves to the follow-up cutting end position to avoid the sheet-feeding assembly.

4. The control method for feeding a pole piece in a single roll according to claim 3, characterized in that: in, The step of the feeding assembly feeding out the defective electrode piece comprises: The sheet-feeding assembly delivers the head of the defective segment electrode sheet to the sheet-entering assembly, and the sheet-entering assembly clamps the defective segment electrode sheet; Alternatively, the sheet feeding assembly feeds the head of the defective segment electrode sheet to the single roll assembly, and the single roll assembly clamps the defective segment electrode sheet.

5. The control method for feeding a pole piece in a single roll according to claim 4, characterized in that: in, The step of the sheet feeding assembly feeding out the qualified segment pole piece includes: the sheet feeding assembly feeding the head of the qualified segment pole piece to the sheet feeding assembly, and the sheet feeding assembly feeding the qualified segment pole piece to the winding assembly.

6. The control method for feeding a pole piece in a single roll according to claim 1, characterized in that: The chasing clamp waiting position has a normally open component, and the normally open component drives the sheet feeding component to remain open.

7. A winding device, comprising at least a winding assembly, a single roll assembly, a sheet feeding assembly and a cutting assembly, wherein the winding device is used to implement the control method for feeding a single roll of a pole piece as described in any one of claims 1 to 6.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a program, and when the program is executed by a processor, the control method for feeding a single roll of a pole piece according to any one of claims 1 to 6 is implemented.

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