Winding device, winding equipment and method of using the winding device

Abstract

The present invention discloses a winding device, a winding equipment and a method for using the winding device. The winding device includes a base and a winding mechanism. The base includes a material receiving station, a winding station and a material unloading station. The winding mechanism can be movably arranged on the base and can switch between the material receiving station, the winding station and the material unloading station to perform corresponding actions. The winding mechanism includes a first needle body and a second needle body. During the process of the first needle body and the second needle body returning from the material unloading station to the material receiving station, the first needle body and the second needle body are relatively separated and converge at the material receiving station in a manner of being respectively arranged on both sides of the material. The reset method of the first needle body and the second needle body being respectively movable can effectively avoid each station and each mechanism, and at the same time can appropriately receive the material, optimize the action of the winding needle stopping the tape and grabbing the material tape after unloading, shorten the time consumption of the battery cell production process, and improve the winding efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of battery cell production, and in particular to a winding device, a winding equipment and a method for using the winding device. Background Art

[0002] Traditional battery cell winding equipment basically stops the tape and then cuts it. After cutting the tape, a corresponding fixing device is required to grab the tape to prevent it from deviating. This layout makes the overall equipment bulky, and the auxiliary time for connecting each station before winding the battery cell is relatively long, resulting in low winding efficiency. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a winding device that can reduce the probability of the strip running off and improve the winding efficiency.

[0004] The present invention also provides a winding device comprising the above-mentioned winding device.

[0005] The present invention also provides a method for using the winding device.

[0006] The winding device according to the first embodiment of the present invention comprises:

[0007] The base includes a material receiving station, a winding station and a material unloading station, wherein the material receiving station is capable of receiving materials;

[0008] a winding mechanism, movably disposed on the base, capable of switching movement between the receiving station, the winding station, and the unloading station to perform corresponding preset actions;

[0009] The winding mechanism includes a first needle body and a second needle body. When the first needle body and the second needle body return from the unloading station to the material receiving station, the first needle body and the second needle body are relatively far away from each other and converge at the material receiving station in a manner of being respectively arranged on both sides in the material thickness direction.

[0010] The winding device according to the first aspect of the present invention has at least the following beneficial effects: the reset method in which the first needle body and the second needle body move separately can effectively avoid each workstation and each mechanism, and at the same time can properly receive the material, thereby optimizing the action of stopping the tape and grabbing the material tape after the winding needle unloads the material, shortening the time of the battery cell production process, and improving the winding efficiency.

[0011] According to the winding device described in the embodiment of the first aspect of the present invention, the winding device includes at least two winding mechanisms, each of which can be movably arranged on the base, and each of the winding mechanisms can switch and move in sequence between the material receiving station, the winding station and the material unloading station.

[0012] According to the winding device described in the embodiment of the first aspect of the present invention, the winding device also includes a cutter mechanism, which is arranged between the material receiving station and the material unloading station. During the process of the winding mechanism moving from the material receiving station to the winding station, the cutter mechanism selects the timing to perform the cutting action downstream of the winding mechanism according to the relative speed relationship between the winding mechanism and the material.

[0013] According to the winding device described in the embodiment of the first aspect of the present invention, the cutter mechanism includes a knife body, and the knife body is movably arranged between the material receiving station and the material unloading station. The knife body moves with the winding mechanism, and when the movement speed of the knife body, the winding mechanism and the material is equal, the cutter mechanism performs a cutting action.

[0014] According to the winding device described in the embodiment of the first aspect of the present invention, the winding device also includes a gluing mechanism, which is located between the winding station and the unloading station and is arranged close to the movement path of the winding mechanism so that the material passes through the gluing station of the gluing mechanism. When the cutting mechanism completes the cutting action, the gluing mechanism performs the finishing gluing action.

[0015] According to the winding device described in the embodiment of the first aspect of the present invention, the winding device also includes a tail roller assembly, which is arranged close to the unloading station. When the cutting mechanism completes the cutting action, the tail roller assembly is used to press against the outer peripheral side of the material to cooperate with the action of the gluing mechanism.

[0016] According to the winding device described in the embodiment of the first aspect of the present invention, during the process of the first needle body and the second needle body moving from the unloading station to the receiving station, the first needle body and the second needle body respectively move on both sides of the winding station.

[0017] According to the winding device described in the embodiment of the first aspect of the present invention, the movement trajectories of the first needle body and the second needle body are arranged in a mirror image with the winding station as a reference.

[0018] According to the winding device described in the embodiment of the first aspect of the present invention, the movement trajectories of the first needle body and the second needle body are both arc-shaped.

[0019] The winding equipment according to the second embodiment of the present invention includes: the winding device according to the first embodiment of the present invention.

[0020] The winding equipment according to the second embodiment of the present invention has at least the following beneficial effects: the winding machine is provided with the winding device according to the first embodiment of the present invention, which can reduce the auxiliary time before winding the battery cell and improve the winding efficiency.

[0021] A method for using a winding device according to a third aspect of the present invention includes:

[0022] The method for using the winding device includes a base, a winding mechanism, a cutting mechanism and a gluing mechanism, wherein the base includes a material receiving station, a winding station and a material unloading station, and the winding mechanism includes a first needle body and a second needle body;

[0023] The method of using the winding device comprises the following steps:

[0024] The winding mechanism located at the winding station performs a winding action;

[0025] When the winding mechanism located at the winding station meets the preset conditions, the cutting mechanism performs a cutting action;

[0026] The gluing mechanism cooperates with the winding mechanism to perform the finishing and gluing actions;

[0027] The winding mechanism moves to the unloading station and performs the unloading action after the gluing action is completed;

[0028] After the winding mechanism at the blanking station performs the blanking action, the first needle body and the second needle body move away from each other and merge at the receiving station in a manner of being respectively arranged on both sides in the material thickness direction to return to the ready state.

[0029] The method for using the winding device according to the third aspect of the embodiment of the present invention has at least the following beneficial effects: the cutter mechanism selects the timing to perform the cutting action according to the relative relationship between the winding mechanism and the material, and the winding mechanism can better clamp the material at the material receiving station by the separate movements of the first needle body and the second needle body, thereby shortening the time of the battery cell production process.

[0030] According to the method for using the winding device of the third aspect of the present invention, the method comprises at least two winding mechanisms, and the method for using the winding device further comprises the following steps:

[0031] When the winding mechanism located at the winding station performs a winding action, the winding mechanism located at the material receiving station is in a ready state;

[0032] When the winding mechanism at the winding station meets a preset condition, the winding mechanism at the material receiving station moves toward the winding station, and the cutter mechanism downstream of the winding mechanism selects a timing to perform a cutting action according to a relative speed relationship between the winding mechanism and the material;

[0033] When the cutter mechanism is cutting, the winding mechanism moving toward the winding station performs a pre-winding action and gradually moves to the winding station, and there is a preset distance between each of the winding mechanisms.

[0034] According to the method for using the winding device described in the embodiment of the third aspect of the present invention, a plurality of intermediate stop positions are provided in the paths in which the first needle body and the second needle body respectively move, and the first needle body and / or the second needle body can stay in one of the intermediate stop positions for a preset period of time and then return to the material receiving station.

[0035] According to the method for using the winding device described in the embodiment of the third aspect of the present invention, the cutter mechanism includes a knife body, and the knife body moves synchronously with the winding mechanism to perform tracking cutting.

[0036] According to the method for using the winding device described in the embodiment of the third aspect of the present invention, the cutting action is performed when the movement speeds of the knife body, the winding mechanism and the material are equal.

[0037] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0039] Figure 1 is a schematic diagram of an embodiment of the present invention;

[0040] Figure 2 is an action flow chart of an embodiment of the present invention;

[0041] Figure 3 is an action flow chart of an embodiment of the present invention;

[0042] Figure 4 This is an action flow chart of an embodiment of the present invention.

[0043] Reference numerals:

[0044] Winding mechanism 100, first needle body 110, second needle body 120;

[0045] Material receiving station 210, winding station 220, material unloading station 230, intermediate stop station 240;

[0046] Cutter mechanism 300;

[0047] Glue applying mechanism 400 . DETAILED DESCRIPTION

[0048] The following describes embodiments of the present invention in detail. 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 intended only to explain the present invention and are not to be construed as limiting the present invention.

[0049] In the description of the present invention, it should be understood that descriptions involving orientations, 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. They are only for the convenience of describing the present invention 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. Therefore, they cannot be understood as limitations on the present invention.

[0050] In the description of the present invention, "several" means one or more, "many" means at least two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0051] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting 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 the present invention based on the specific content of the technical solution.

[0052] Reference Figures 1 to 4 The winding device of the first embodiment of the present invention is applied to the production of battery cells, and the winding device includes a base and a winding mechanism 100.

[0053] The base includes a material receiving station 210, a winding station 220, and a material unloading station 230. The material receiving station 210 is capable of receiving materials. The winding mechanism 100 is movably arranged on the base. The winding mechanism 100 can switch and move between the material receiving station 210, the winding station 220, and the material unloading station 230 in sequence to perform corresponding preset actions. The winding mechanism 100 includes a first needle body 110 and a second needle body 120. During the process of the first needle body 110 and the second needle body 120 returning from the material unloading station 230 to the material receiving station 210, the first needle body 110 and the second needle body 120 are relatively separated and converge at the material receiving station 210 in a manner of being respectively arranged on both sides in the material thickness direction.

[0054] It should be noted that each winding mechanism 100 moves in sequence along the material receiving station 210, the winding station 220 and the unloading station 230, and finally returns to the material receiving station 210. In the initial state, the winding mechanism 100 is located at the winding station 220, the material passes through the winding mechanism 100 and is clamped, and the winding mechanism 100 rotates to realize the winding of the battery cell.

[0055] It is understandable that the materials entering the material receiving station 210 include but are not limited to diaphragms, material strips and pole pieces. A corresponding conveyor line can be set upstream of the material receiving station 210 to realize the feeding of the corresponding materials. In this embodiment, the first needle body 110 and the second needle body 120 move to the material receiving station 210 by merging, so that the first needle body 110 and the second needle body 120 located at the material receiving station 210 can smoothly receive materials under various circumstances. The first needle body 110 and the second needle body 120 are relatively close from the outside to the inside on both sides of the thickness direction of the material, which can have a certain limiting and gathering effect on the material. It is understandable that a corresponding driving component is provided on the base to drive the first needle body 110 and the second needle body 120 to separate and return to the material receiving station 210. The first needle body 110 and the second needle body 120 have mutually cooperating clamping components on their relative inner sides or through the mutual cooperation of the needle bodies, the action of clamping the material can be achieved. In this regard, the outer contours of the first needle body 110 and the second needle body 120 can be set to complementary circles, polygons, etc. to ensure the shape of the battery core.

[0056] It can be understood that the ways in which the first needle body 110 and the second needle body 120 move relative to each other include relative distance in the up, down, left, right, front and back directions. The movement paths of the first needle body 110 and the second needle body 120 can be designed specifically while ensuring that there is no collision with various mechanisms, but it is necessary to ensure that the first needle body 110 and the second needle body 120 eventually converge on both sides of the material thickness direction to clamp the material and be located at the material receiving station 210 under suitable working conditions.

[0057] Furthermore, in order to perform the unloading action at the unloading station 230, the winding mechanism 100 will execute the standby, retract or extend along its own axis according to the preset instructions, and then the first needle body 110 and the second needle body 120 will move respectively, and before, when or after the two sides of the material thickness direction merge, the first needle body 110 and the second needle body 120 will expand and contract along the width direction of the material to better limit themselves to the two sides of the thickness direction of the material, wherein the expansion and contraction distance of the first needle body 110 and the second needle body 120 can be controlled according to the specific state of the material.

[0058] It should be noted that the winding station 220 is the station where the winding mechanism 100 performs the action of winding the battery cell. After the winding mechanism 100 clamps the input material, it rotates around its own axis to realize the action of winding the battery cell. For this, a corresponding driving mechanism can be set on the base to drive the winding mechanism 100 to rotate along its own axis.

[0059] The reset method in which the first needle body 110 and the second needle body 120 move separately can effectively avoid each workstation and each mechanism, and at the same time can properly receive the material, optimize the action of stopping the tape and grabbing the material tape after the winding needle unloads the material, shorten the time of the battery cell production process, and improve the winding efficiency.

[0060] In some embodiments of the present invention, the winding device includes at least two winding mechanisms 100, each of which is movably arranged on a base, and each of which is capable of switching and moving in sequence between the material receiving station 210, the winding station 220, and the unloading station 230. It is understood that in the initial state, at least one winding mechanism 100 is located at the material receiving station 210, and at least one winding mechanism 100 is located at the winding station 220. The material passes through the two winding mechanisms 100 in sequence and is clamped by the winding mechanism 100 located at the winding station 220 to achieve battery cell winding, while the winding mechanism 100 located at the material receiving station 210 is in a ready state, ready to perform the movement and pre-winding actions. By setting up two winding mechanisms 100 to perform corresponding preset actions in sequence, battery cell winding is performed at the winding station 220, and material can be obtained at the material receiving station 210 at the same time, and the pre-winding of the battery cell begins during the movement process, the time consumption of the battery cell production process is shortened.

[0061] In some embodiments of the present invention, the winding device further includes a cutter mechanism 300, which is disposed between the material receiving station 210 and the material unloading station 230. During the movement of the winding mechanism 100 from the material receiving station 210 to the winding station 220, the cutter mechanism 300 selects the timing for cutting at the downstream of the winding mechanism 100 based on the relative speed relationship between the winding mechanism 100 and the material. By controlling the moving speed of the winding mechanism 100 to match the moving speed of the material, that is, when the relative speed between the winding mechanism 100 and the material is within a suitable range, the cutter mechanism 300 shears the material, and the process of stopping feeding and then cutting in the normal state can be restored without stopping the machine, thereby achieving the effect of continuously winding the battery cells without stopping the machine.

[0062] It is understood that the cutter mechanism 300 is normally mounted on the base, but initially retreats to a specific position and hides. When the winding mechanism 100 is in place at the receiving station 210, the cutter mechanism 300 extends and positions itself on both sides of the material in the thickness direction, ready to perform shearing operations at any time. It is understood that after the cutter mechanism 300 performs the cutting operation, it retreats along the width of the material or resets along both sides of the material in the thickness direction to a position where it does not interfere with the winding mechanism 100. After the cutter mechanism 300 performs the shearing operation, the winding mechanism 100 located at the winding station 220 recycles the cut material. Simultaneously, the winding mechanism 100, moving from the receiving station 210 to the winding station 220, simultaneously captures the upper half of the material. After capturing the material, it begins the pre-winding operation and moves simultaneously, reducing the preparation time for cell winding and improving pre-winding efficiency. It can be understood that in order to enable the two winding mechanisms 100 to work logically, the cutter mechanism 300 is always located between the two winding mechanisms 100 .

[0063] In some embodiments of the present invention, the cutter mechanism 300 includes a cutter body, which is movably arranged between the material receiving station 210 and the material unloading station 230. The cutter body moves with the winding mechanism 100, and when the moving speeds of the cutter body, the winding mechanism 100 and the material are equal, the cutter mechanism 300 performs a cutting action. It can be understood that when the moving speeds of the winding mechanism 100 and the material are equal, the winding mechanism 100 and the material are relatively stationary. In this state, the effect of obtaining the material is best, and the movement of the material and the pre-rolling action can be made more stable. Further setting the moving speeds of the cutter body, the winding mechanism 100 and the material to be equal, and all three are relatively stationary, can ensure that the shearing position is more accurate and the timing of starting the pre-rolling action of the winding mechanism 100 is more reasonable. Furthermore, by controlling the feeding speed of the material and the moving speed and acceleration process of the two winding mechanisms 100, it is ensured that at the moment the winding mechanism 100 moves from the material receiving station 210 to the winding station 220, the speed of the winding mechanism 100 is the same as the material speed, the cutter body performs cutting, and the winding mechanism 100 clamps the material at the moment of the winding station 220 to perform the winding action.

[0064] Furthermore, those skilled in the art will appreciate that the term "equal" herein does not necessarily mean absolutely equal, but also includes "approximately equal" or "roughly equal." In some embodiments, the control of the blade, winding mechanism 100, and material speed may have an acceptable error due to external factors.

[0065] In some embodiments of the present invention, the winding device further includes a gluing mechanism 400. The gluing mechanism 400 is located between the winding station 220 and the unloading station 230 and is positioned near the movement path of the winding mechanism 100. This allows the material to pass through the gluing station of the gluing mechanism 400. When the cutter mechanism 300 completes the cutting action, the gluing mechanism 400 performs the final gluing action. When the cutter mechanism 300 completes the cutting action, the gluing mechanism 400 compresses and closes the battery cells located in the winding station 220, and glues the cells at the end or in the middle of the final process to complete the production of the battery cells. It is understood that the gluing mechanism 400 has two operating states: hidden on the base and in place. By arranging the gluing mechanism 400 in a suitable position, the gluing mechanism 400, when in place, can maintain an appropriate distance from the winding mechanism 100 located in the winding station 220, precisely compressing battery cells of a certain thickness and gluing the cells according to preset instructions.

[0066] In some embodiments of the present invention, the winding device further includes a tail roller assembly, which is arranged near the blanking station 230. When the cutter mechanism 300 completes the cutting action, the tail roller assembly is used to press against the outer peripheral side of the material to cooperate with the action of the gluing mechanism 400. It can be understood that in this embodiment, the gluing mechanism 400 is arranged near the blanking station 230 and is located on the movement path of the winding mechanism 100. The tail roller assembly has two tasks: hiding and being in place on the base. After the tail roller assembly is in place, when the cutter mechanism 300 completes the cutting action, the tail roller assembly presses against and presses the limited battery cell through its circumferential side wall, so that the battery cell is in a suitable state. The gluing mechanism 400 uses its gluing station to perform the gluing action on the battery cell to complete the production of the battery cell.

[0067] In some embodiments of the present invention, during the process of the first needle body 110 and the second needle body 120 moving from the unloading station 230 to the material receiving station 210, the first needle body 110 and the second needle body 120 move on both sides of the winding station 220 respectively. By setting the first needle body 110 and the second needle body 120 to move on both sides of the winding station 220 respectively, the path can be reasonably planned, avoiding the winding mechanism 100 located upstream, and can be smoothly positioned on both sides of the thickness of the material. It should be noted that the first needle body 110 and the second needle body 120 can be driven separately by independent driving devices, so that the first needle body 110 and the second needle body 120 can move back to the material receiving mechanism according to the preset path. It should be noted that the first needle body 110 and the second needle body 120 can also be connected to the transmission mechanism through a driving component such as a servo motor, and the first needle body 110 and the second needle body 120 can be moved back to the material receiving station 210 according to the preset path through the reasonable design of the transmission mechanism. It should be noted that the movement speeds of the first needle body 110 and the second needle body 120 can be the same or different. The first needle body 110 and the second needle body 120 can return to the material receiving station 210 one after another or at the same time, which is not further limited here.

[0068] In some embodiments of the present invention, the motion trajectories of the first needle 110 and the second needle 120 are mirror images of the winding station 220. Through the targeted design of the motion trajectories, it is possible to ensure that the first needle 110 and the second needle 120 return to the material receiving station 210 at corresponding motion speeds, while minimizing the impact on the layout of the various stations on the base.

[0069] In some embodiments of the present invention, the motion trajectories of the first needle 110 and the second needle 120 are both arc-shaped. It should be noted that setting the motion trajectories of the first needle 110 and the second needle 120 to complementary semicircular shapes can well define the range of motion of the winding mechanism 100, thereby better arranging the various workstations and mechanisms.

[0070] Reference Figures 1 to 4 The winding device of the second embodiment of the present invention may be a winding machine, and the winding device includes the winding device of the first embodiment of the present invention. The winding device using this winding device can reduce the auxiliary time before winding the battery cell and improve the winding efficiency.

[0071] Reference Figures 1 to 4 The method for using the winding device of the third aspect embodiment of the present invention includes a base, a winding mechanism 100, a cutting mechanism 300 and a gluing mechanism 400. The base includes a material receiving station 210, a winding station 220 and a material unloading station 230. The winding mechanism 100 includes a first needle body 110 and a second needle body 120.

[0072] The method of using the winding device comprises the following steps:

[0073] The winding mechanism 100 located at the winding station 220 performs the winding action;

[0074] When the winding mechanism 100 at the winding station 220 meets the preset conditions, the cutting mechanism 300 performs the cutting action;

[0075] The gluing mechanism 400 cooperates with the winding mechanism 100 to perform the finishing and gluing operations;

[0076] The winding mechanism 100 moves to the unloading station 230 and performs the unloading action after the gluing action is completed; the winding mechanism 100 may move to the unloading station 230 and perform the unloading action during or after the finishing and gluing action; or after the winding mechanism 100 moves to the unloading station 230, the gluing mechanism 400 performs the finishing and gluing action;

[0077] After the winding mechanism 100 located at the unloading station 230 performs the unloading action, the winding mechanism 100 can execute the standby action, retract or extend along its own axis according to the preset instructions, and then the first needle body 110 and the second needle body 120 are relatively separated, and are respectively arranged on both sides of the material thickness direction at the material receiving station 210 to return to the ready state.

[0078] The cutter mechanism 300 selects the timing for cutting according to the relative relationship between the winding mechanism 100 and the material. By moving the first needle body 110 and the second needle body 120 separately, the winding mechanism 100 can better clamp the material at the material receiving station 210, thereby shortening the time of the battery cell production process.

[0079] In some embodiments of the present invention, the method for using the winding device includes at least two winding mechanisms 100, and the method for using the winding device further includes the following steps:

[0080] When the winding mechanism 100 at the winding station 220 performs the winding action, the winding mechanism 100 at the material receiving station 210 is in a standby state;

[0081] When the winding mechanism 100 at the winding station 220 meets the preset conditions, the winding mechanism 100 at the receiving station 210 moves toward the winding station 220, and the cutter mechanism 300 downstream of the winding mechanism 100 selects the timing for cutting based on the relative speed relationship between the winding mechanism 100 and the material.

[0082] When the cutter mechanism 300 is cutting, the winding mechanism 100 moving toward the winding station 220 performs a pre-winding action and gradually moves to the winding station 220 , with a preset distance between each winding mechanism 100 .

[0083] By providing at least two winding mechanisms 100 , a pre-winding action can be performed while a winding action is performed, thereby improving the efficiency of battery cell production.

[0084] In some embodiments of the present invention, the method for using the winding device may further include the following steps:

[0085] The material is input to the material receiving station 210, and the material is continuously input from the material receiving station 210. At this time, there are at least two winding mechanisms 100 respectively located at the material receiving station 210 and the winding station 220. It can be understood that corresponding sensor components can be set to detect whether each mechanism is in place.

[0086] The winding mechanism 100 at the winding station 220 performs the winding action, and the winding mechanism 100 at the receiving station 210 is in a standby state. It is understood that corresponding sensor components can be set to detect the position of each station and mechanism to ensure whether the cutter mechanism 300 can complete the follow-up cutting action.

[0087] When the winding mechanism 100 at the winding station 220 meets preset conditions, the winding mechanism 100 at the receiving station 210 moves toward the winding station 220. The cutter mechanism 300, located downstream of the winding mechanism 100, selects the timing for cutting based on the relative speed between the winding mechanism 100 and the material. The preset conditions can include a specific winding time, number of turns, or a specific length of input material for the winding mechanism 100, and these parameters can be designed based on the specific model and specifications of the battery cell.

[0088] While the cutter mechanism 300 is cutting, the winding mechanism 100, which is moving toward the winding station 220, performs a pre-winding operation and gradually moves to the winding station 220, with a preset spacing between the winding mechanisms 100. While the cutter mechanism 300 is cutting, the winding mechanism 100 also simultaneously acquires material, achieving a stable pre-winding state. It is understood that a corresponding sensor component is required to detect whether the winding mechanism 100 has successfully acquired material before executing the pre-winding operation.

[0089] While the cutter mechanism 300 is cutting, the gluing mechanism 400 cooperates with the winding mechanism 100 to complete the winding process and apply glue. While the cutter mechanism 300 is cutting, the gluing mechanism 400 first positions the wound battery cells to facilitate smooth winding. Once the cells are completed, the gluing process begins. It is understood that a sensor component is required to detect whether the gluing process is complete. If it is, the cells are unloaded; otherwise, they are collected for recycling.

[0090] The winding mechanism 100 moves to the unloading station 230 during or after the finishing and gluing process, or after completing the gluing process at the unloading station 230, and then performs the unloading process. It is understood that the unloading process does not require a specific start time for the finishing and gluing of the battery cells, so as to allow ample time for gluing. It is also understood that a corresponding sensor assembly is required to detect the completion of the unloading process, and to complete the respective movements of the first needle 110 and the second needle 120.

[0091] After the winding mechanism 100 at the unloading station 230 unloads the material, the first and second needles 110, 120 move away from each other and converge at the receiving station 210, positioned on either side of the material, to return to the standby state. This convergence allows for preliminary gathering and positioning of the material, enhancing the precision of the pre-winding and follow-up cutting operations.

[0092] The cutter mechanism 300 selects the timing for cutting according to the relative speed relationship between the winding mechanism 100 and the material, thereby achieving a tracking cutting effect. The winding mechanism 100 can clamp the material without slowing down, thereby adding a pre-winding action. The initial battery cell winding can be started during the workstation change process, which can shorten the time of the battery cell production process.

[0093] In some embodiments of the present invention, multiple intermediate resting positions 240 are provided along the paths of movement of the first needle 110 and the second needle 120. The first needle 110 and / or the second needle 120 can remain at an intermediate resting position 240 for a preset period of time before returning to the material receiving station 210. This ensures that the winding mechanisms 100 are appropriately spaced apart to prevent interference. Along the movement paths of the first needle 110 and the second needle 120, the intermediate resting positions 240 can be selectively positioned at midpoints, points dividing the movement into three equal parts, or other locations to better control the spacing between the winding mechanisms 100. In some embodiments, three winding mechanisms 100 are provided on the base. Two winding mechanisms 100 can be positioned at the material receiving station 210 and the winding station 220, respectively. The first needle 110 and the second needle 120 of the third winding mechanism 100 are positioned at intermediate resting positions 240 along the corresponding paths, and so on, switching between the winding mechanisms 100 in sequence while maintaining a certain spacing.

[0094] In some embodiments of the present invention, the cutter mechanism 300 includes a blade that moves synchronously with the winding mechanism 100 to perform follow-cutting. It should be noted that the blade and winding mechanism 100 gradually accelerate along the direction of material movement, achieving shearing when the speeds match within a suitable range, thereby enabling the winding mechanism 100 to perform pre-winding operations.

[0095] In some embodiments of the present invention, the cutting action is performed when the speeds of the blade, the winding mechanism 100 and the material are equal or approximately equal. The blade and the winding mechanism 100 are gradually accelerated to match the speed of the material, and the best cutting effect is achieved during the speed synchronization stage.

[0096] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0097] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the scope of the present invention.

Claims

1. A winding device, characterized in that: include: The base includes a material receiving station, a winding station and a material unloading station, wherein the material receiving station is capable of receiving materials; a winding mechanism, movably disposed on the base, capable of switching movement between the receiving station, the winding station, and the unloading station to perform corresponding preset actions; In which, the winding mechanism includes a first needle body and a second needle body. In the process of the first needle body and the second needle body returning from the unloading station to the material receiving station, the first needle body and the second needle body are relatively far away from each other and converge at the material receiving station in a manner of being respectively arranged on both sides in the material thickness direction.

2. The winding device according to claim 1, characterized in that: The winding device includes at least two winding mechanisms, each of which can be movably arranged on the base, and each of which can switch and move between the material receiving station, the winding station and the material unloading station in sequence.

3. The winding device according to claim 2, characterized in that: The winding device also includes a cutter mechanism, which is arranged between the material receiving station and the material unloading station. During the movement of the winding mechanism from the material receiving station to the winding station, the cutter mechanism selects the timing for cutting at the downstream of the winding mechanism according to the relative speed relationship between the winding mechanism and the material.

4. The winding device according to claim 3, characterized in that: The cutter mechanism includes a cutter body, which is movably arranged between the material receiving station and the material unloading station. The cutter body moves with the winding mechanism, and when the movement speeds of the cutter body, the winding mechanism and the material are equal, the cutter mechanism performs a cutting action.

5. The winding device according to claim 3, characterized in that: The winding device also includes a gluing mechanism, which is located between the winding station and the unloading station and is arranged close to the movement path of the winding mechanism so that the material passes through the gluing station of the gluing mechanism. When the cutting mechanism completes the cutting action, the gluing mechanism performs the finishing gluing action.

6. The winding device according to claim 5, characterized in that: The winding device also includes a tail roller assembly, which is arranged close to the unloading station. When the cutter mechanism completes the cutting action, the tail roller assembly is used to press against the outer peripheral side of the material to cooperate with the action of the gluing mechanism.

7. The winding device according to claim 1 or 2, characterized in that: During the process of the first needle body and the second needle body moving from the unloading station to the receiving station, the first needle body and the second needle body move on both sides of the winding station respectively.

8. The winding device according to claim 7, characterized in that: The movement trajectories of the first needle body and the second needle body are mirror-imaged with respect to the winding station.

9. The winding device according to claim 8, characterized in that: The movement trajectories of the first needle body and the second needle body are both arc-shaped.

10. A winding device, characterized in that: include: A winding device according to any one of claims 1 to 9.

11. A method for using a winding device, characterized in that: The method for using the winding device includes a base, a winding mechanism, a cutting mechanism and a gluing mechanism, wherein the base includes a material receiving station, a winding station and a material unloading station, and the winding mechanism includes a first needle body and a second needle body; The method of using the winding device comprises the following steps: The winding mechanism located at the winding station performs a winding action; When the winding mechanism located at the winding station meets the preset conditions, the cutting mechanism performs a cutting action; The gluing mechanism cooperates with the winding mechanism to perform the finishing and gluing actions; The winding mechanism moves to the unloading station and performs the unloading action after the gluing action is completed; After the winding mechanism at the blanking station performs the blanking action, the first needle body and the second needle body move away from each other and merge at the receiving station in a manner of being respectively arranged on both sides in the material thickness direction to return to the ready state.

12. The method for using the winding device according to claim 11, characterized in that: The method for using the winding device includes at least two winding mechanisms, and the method for using the winding device further includes the following steps: When the winding mechanism located at the winding station performs a winding action, the winding mechanism located at the material receiving station is in a ready state; When the winding mechanism at the winding station meets a preset condition, the winding mechanism at the material receiving station moves toward the winding station, and the cutter mechanism downstream of the winding mechanism selects a timing to perform a cutting action according to a relative speed relationship between the winding mechanism and the material; When the cutter mechanism is cutting, the winding mechanism moving toward the winding station performs a pre-winding action and gradually moves to the winding station, and there is a preset distance between each of the winding mechanisms.

13. The method for using the winding device according to claim 12, characterized in that: A plurality of intermediate stop positions are provided in the movement paths of the first needle body and the second needle body respectively. The first needle body and / or the second needle body can stay in one of the intermediate stop positions for a preset period of time and then return to the material receiving station.

14. The method for using the winding device according to claim 12, characterized in that: The cutter mechanism comprises a cutter body, and the cutter body moves synchronously with the winding mechanism to perform follow-up cutting.

15. The method for using the winding device according to claim 14, characterized in that: The cutting action is performed when the movement speeds of the knife body, the winding mechanism and the material are all equal.

Images