Encapsulation apparatus and encapsulation method

Abstract

The application discloses a rubber coating device and method, relates to the technical field of battery processing, and relates to a rubber coating device which comprises a feeding device and a rubber coating device. The feeding device is used for conveying an upright and rotatable battery cell to a rubber coating station. The rubber coating device is arranged on one side of the feeding device and comprises a rubber tape supply mechanism, a rubber tape sticking mechanism and a cutting mechanism. The rubber tape sticking mechanism comprises an adsorption wheel and an adsorption wheel driver used for driving the adsorption wheel to rotate. The adsorption wheel periphery is provided with adsorption holes used for adsorbing rubber tapes. The rubber tapes on the adsorption wheel periphery can be tangent to the battery cell on the rubber coating station. The rubber tape supply mechanism is used for supplying rubber tapes to the rubber tape sticking mechanism. The cutting mechanism is used for cutting the rubber tapes adsorbed on the adsorption wheel periphery in sections. The design can realize upright rubber coating and does not need to experience multiple transfer positioning operations. Meanwhile, a traditional rubber tape pulling mechanism can be omitted, and the working hours are further shortened. The rubber coating device has a simple rubber coating process and greatly improves the assembly efficiency of the battery cell.

Description

Technical Field

[0001] This application relates to the field of battery processing technology, and in particular to coating equipment and coating methods. Background Technology

[0002] When cylindrical cells are installed in the casing, the cell tabs are easily scratched by friction with the inner wall of the steel casing, and the tabs are also prone to contact with the steel casing, which can cause short circuits. Therefore, it is necessary to apply adhesive tape to the cell tabs, so that the tape covers the end of the cell and part of the tape is located on the outside of the end of the cell.

[0003] Existing encapsulation mechanisms are mostly horizontal, meaning the battery cell is laid flat and encapsulated at the cell tabs. However, in battery production, the cells are fed vertically, meaning the positive and negative terminals are vertically aligned. Before encapsulation, the cells need to be removed from the cell carrier and rotated to a flat position. After encapsulation, in subsequent casing processes, the cells need to be placed on the cell carrier in a vertical position. This requires rotating the cells back to a vertical position and inserting them into the carrier after encapsulation. The entire encapsulation process involves multiple transfers and positioning steps, making it cumbersome and significantly impacting cell assembly efficiency. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide coating equipment and coating method to solve the technical problems existing in the background art.

[0005] To achieve the above-mentioned technical objectives, this application provides a coating equipment, including a feeding device and a coating device;

[0006] The feeding device is used to transport the vertical and rotatable battery cells to the overmolding station;

[0007] The tape coating device is located on one side of the feeding device and includes a tape supply mechanism, a tape application mechanism, and a cutting mechanism.

[0008] The adhesive applicator includes an adsorption wheel and an adsorption wheel driver for driving the adsorption wheel to rotate.

[0009] The adsorption wheel has adsorption holes distributed on its circumferential surface for adsorbing adhesive tape, and the adhesive tape on the circumferential surface of the adsorption wheel can make tangential contact with the battery cell located at the coating station.

[0010] The tape supply mechanism is used to supply tape to the tape application mechanism;

[0011] The cutting mechanism is used to cut the tape adsorbed on the circumferential surface of the adsorption wheel into sections.

[0012] Furthermore, it also includes a positioning device;

[0013] The positioning device can roll into contact with the battery cell located at the coating station along the radial direction and / or axial direction of the battery cell to position the battery cell.

[0014] Furthermore, the feeding device includes a feeding turntable and a turntable driver;

[0015] The turntable driver is connected to the feeding turntable and is used to drive the feeding turntable to rotate;

[0016] The feeding turntable has multiple carrier slots evenly distributed around its circumference for conveying battery cell carriers loaded with battery cells.

[0017] Furthermore, the positioning device includes a pressing mechanism;

[0018] The pressing mechanism includes a pressing turntable, a pressing fixed plate, and multiple pressing components;

[0019] The top pressure turntable is positioned above the feeding turntable and rotates synchronously with the feeding turntable on the same axis.

[0020] Multiple top-pressing components are circumferentially arranged on the top of the top-pressing turntable, and each corresponds to a carrier slot;

[0021] The top-pressing assembly includes a top-pressing slider and a top-pressing roller;

[0022] The top-pressing slider is slidably connected to the top of the top-pressing turntable in the straight line between the center line of its corresponding carrier position and the rotation axis of the feeding turntable;

[0023] The top pressure roller is rotatably mounted on one end of the top pressure slider that extends out of the top pressure turntable, and can make rolling contact with the battery cell on the corresponding carrier slot;

[0024] The top pressure fixing plate is fixed above the top pressure turntable and is coaxially arranged with the top pressure turntable;

[0025] The bottom of the top pressure fixing plate is provided with a first track groove;

[0026] The top of the top-pressing slider is provided with a first guide roller that extends into the first track groove and moves along the first track groove, so as to achieve sliding on the top-pressing turntable;

[0027] When the first guide roller moves to the position of the first track groove corresponding to the coating station, the top pressure slider slides to the state where the top pressure roller contacts the battery cell on the coating station.

[0028] Furthermore, the positioning device includes a pressing mechanism;

[0029] The pressing mechanism includes a pressing turntable, a pressing fixed cylinder, and multiple pressing components;

[0030] The pressing turntable is positioned above the feeding turntable and rotates synchronously with the feeding tray on the same axis.

[0031] Multiple pressing components are circumferentially arranged on the top of the pressing turntable, and each corresponds to a carrier slot;

[0032] The pressing assembly includes a pressing fixed base, a pressing sliding base, and a pressing roller;

[0033] The pressure fixing seat is installed on the top of the pressure turntable;

[0034] The downward sliding seat is slidably mounted on the downward fixing seat along the axial direction of the corresponding battery cell carrier;

[0035] The pressing roller is rotatably mounted on the pressing sliding seat, and its bottom end can contact the top of the battery cell on the corresponding carrier slot;

[0036] The pressing fixing cylinder is fixed above the pressing turntable and is coaxially arranged with the pressing turntable;

[0037] The downward pressing fixing cylinder is provided with a second track groove in the circumferential ring;

[0038] The pressing sliding seat is provided with a second guide roller that extends into the second track groove and moves along the second track groove, so as to realize sliding on the pressing fixed seat;

[0039] When the second guide roller moves to the position of the second track groove corresponding to the coating station, the pressing slide seat slides to the state where the pressing roller contacts the battery cell on the coating station.

[0040] Furthermore, a fixing block is provided on the side of the downward sliding seat facing away from the downward fixing seat;

[0041] A guide block is also slidably installed on the downward sliding seat below the fixed block;

[0042] A first elastic element is connected between the guide block and the fixing block;

[0043] The guide block is also connected to a downwardly extending pressure rod;

[0044] The downward pressure roller is rotatably mounted on the end of the pressure rod away from the guide block.

[0045] Furthermore, the coating device also includes a coating follow-up adjustment mechanism and a coating fixing plate;

[0046] The tape supply mechanism, the adhesive application mechanism, and the cutting mechanism are mounted on the adhesive coating fixing plate;

[0047] The adhesive coating follow-up adjustment mechanism is connected to the adhesive coating fixing plate and is used to drive the adhesive coating fixing plate to move and rotate in the horizontal direction, so that the adhesive tape on the circumferential surface of the adsorption wheel is always in tangential contact with the battery cell in the adhesive coating station.

[0048] Furthermore, there are two coating devices;

[0049] There are two coating stations, each corresponding to a coating device;

[0050] While one of the coating devices completes the coating operation on the battery cell at its corresponding coating station and resets, the other coating device is performing the coating operation on the battery cell at its corresponding coating station.

[0051] Furthermore, the cutting mechanism includes a cutter and a cutting driver;

[0052] The cutting driver is connected to the cutter and is used to drive the cutter to move;

[0053] The circumferential surface of the adsorption wheel is provided with a clearance groove to avoid the cutter.

[0054] Furthermore, the cutting mechanism also includes a pressure block;

[0055] The drive end of the cutting driver is connected to a blade holder;

[0056] The cutter is mounted on the cutter holder;

[0057] The pressure block is elastically and telescopically connected to the blade holder via a second elastic element, and is provided with a clearance hole for the cutting blade to extend movably.

[0058] Furthermore, the cutting mechanism also includes a pressure block and a first pressure driver;

[0059] The first adhesive pressing driver is installed on one side of the cutting driver and connected to the adhesive pressing block, and is used to drive the adhesive pressing block to press the tape on the circumferential surface of the adsorption wheel.

[0060] Furthermore, the coating device also includes a pressure roller and a second pressure driver;

[0061] The second pressure-adhesion driver is connected to the pressure-adhesion roller and is used to drive the pressure-adhesion roller to roll and contact the tape on the circumferential surface of the adsorption wheel.

[0062] Furthermore, the overmolding device also includes a tensioning guide mechanism;

[0063] The tensioning and guiding mechanism is located between the adhesive applicator and the tape supply mechanism, and is used to tension and guide the conveyed tape.

[0064] This application also discloses a coating method applied to the aforementioned coating apparatus, comprising the following steps:

[0065] The feeding device delivers the vertical and rotatable battery cells to the overmolding station;

[0066] The cutting mechanism cuts the tape on the circumferential surface of the adsorption wheel;

[0067] The adsorption wheel driver drives the adsorption wheel to rotate, so that the tape cut from the circumference of the adsorption wheel comes into tangential contact with the battery cell at the coating station to complete the coating.

[0068] As can be seen from the above technical solutions, the coating equipment designed in this application includes an adsorption wheel with adsorption holes distributed on its circumference for adsorbing adhesive tape, and an adsorption wheel driver for driving the adsorption wheel to rotate. This allows the adhesive tape on the circumference of the adsorption wheel to make tangential contact with the battery cell located at the coating station, thereby enabling coating of vertical and rotatable battery cells. This vertical coating eliminates the need for multiple transfer and positioning operations and omits the traditional adhesive pulling mechanism, further shortening the processing time. The coating equipment designed in this way simplifies the coating process and significantly improves the assembly efficiency of the battery cells. Attached Figure Description

[0069] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0070] Figure 1 A top view of the coating equipment provided in this application with two coating devices in a state;

[0071] Figure 2 A perspective view of the coating equipment provided in this application with two coating devices in a state;

[0072] Figure 3 A perspective view of the top pressure mechanism of the coating equipment provided in this application;

[0073] Figure 4 This is an exploded schematic diagram of the top pressure mechanism of the coating equipment provided in this application;

[0074] Figure 5A perspective view of the pressing mechanism of the overmolding equipment provided in this application;

[0075] Figure 6 A perspective view of the pressing component of the overmolding equipment provided in this application;

[0076] Figure 7 This is a partial perspective view of the coating device of the coating equipment provided in this application;

[0077] Figure 8 This is a front view of the first cutting mechanism of the overmolding equipment provided in this application;

[0078] Figure 9 An exploded view of the first cutting mechanism of the overmolding equipment provided in this application;

[0079] Figure 10 This is a partial schematic diagram showing the second type of cutting mechanism application state of the overmolding equipment provided in this application;

[0080] Figure 11 A perspective view of the bonding block and the first bonding driver of the second type of cutting mechanism of the coating equipment provided in this application;

[0081] Figure 12 A perspective view of the cutter and cutting driver in the second type of cutting mechanism of the overmolding equipment provided in this application;

[0082] Figure 13 This is a perspective view of the mating of the pressure roller and the second pressure driver in the coating equipment provided in this application.

[0083] Figure 14 This is a flowchart of the overmolding method provided in this application;

[0084] In the diagram: 100, feeding device; 101, feeding turntable; 102, turntable driver; 103, carrier positioning; 200, coating device; 201, adhesive application mechanism; 202, cutting mechanism; 203, tape supply mechanism; 204, coating follow-up adjustment mechanism; 2041, Y-axis displacement module; 2042, X-axis displacement module; 2043, R-axis rotation module; 205, fixing plate; 206, tensioning guide mechanism; 300, positioning device; 301, top pressing mechanism; 302, downward pressing mechanism; 1, suction wheel; 21, top pressing fixing plate; 22, top pressing turntable; 23, top pressing assembly; 231, top pressing slider. ; 232, Top pressure roller; 233, First guide roller; 31, Downward pressure turntable; 32, Downward pressure fixing cylinder; 321, Second track groove; 33, Downward pressure assembly; 331, Second guide roller; 332, Downward pressure sliding seat; 333, Fixing block; 334, First elastic element; 335, Guide block; 336, Pressure rod; 337, Downward pressure roller; 338, Downward pressure fixing seat; 400, Carrier slot; 41, Cutting driver; 42, Cutter; 43, Adhesive pressing block; 431, Clearance hole; 44, Knife holder; 45, Second elastic element; 46, First adhesive pressing driver; 51, Adhesive pressing roller; 52, Second adhesive pressing driver. Detailed Implementation

[0085] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the embodiments of this application.

[0086] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0087] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0088] This application discloses an overcoating device.

[0089] Please see Figure 1 as well as Figure 7 One embodiment of the coating equipment provided in this application includes:

[0090] Feeding device 100 and coating device 200.

[0091] The feeding device 100 is used to transport vertical and rotatable battery cells to the overmolding station.

[0092] The tape coating device 200 is located on one side of the feeding device 100 and includes a tape supply mechanism 203, a tape application mechanism 201, and a cutting mechanism 202.

[0093] The adhesive applicator 201 includes an adsorption wheel 1 and an adsorption wheel driver (not shown) for driving the adsorption wheel 1 to rotate. The adsorption wheel driver can be a conventional servo rotary motor or other rotary motor, and there are no specific limitations.

[0094] The adsorption wheel 1 has adsorption holes distributed on its circumference for adsorbing adhesive tape. This adsorption wheel 1 is connected to a vacuum generator, using negative vacuum to adsorb the adhesive tape. The adhesive tape on the circumference of the adsorption wheel 1 can make tangential contact with the battery cell located at the coating station. Existing vacuum adsorption rollers can be used for this adsorption wheel 1, which will not be elaborated further. This coating scheme, where the adsorption wheel 1 is tangential to the end of the battery cell, reduces the steps of pneumatic grippers picking up and pulling the adhesive tape, further reducing coating time and improving coating efficiency.

[0095] The tape supply mechanism 203 is used to supply tape to the tape application mechanism 201. The tape supply mechanism 203 can be designed with reference to existing tape dispensing components or directly used. Details will not be elaborated here.

[0096] The cutting mechanism 202 is used to cut the tape adsorbed on the circumference of the adsorption wheel 1 into segments. The cutting mechanism 202 can be used to directly cut tape of the corresponding length on the adsorption wheel 1.

[0097] The aforementioned coating equipment can perform coating on vertical and rotatable battery cells, achieving vertical coating without requiring multiple transfer and positioning steps. Furthermore, it eliminates the need for traditional glue-pulling mechanisms, further reducing processing time. This coating equipment simplifies the coating process and significantly improves the assembly efficiency of battery cells.

[0098] The above is Embodiment 1 of the coating equipment provided in this application. The following is Embodiment 2 of the coating equipment provided in this application. Please refer to the following for details. Figures 1 to 3 .

[0099] Based on the solution of Embodiment 1 above:

[0100] like Figure 1 As shown, it further includes a positioning device 300, which can roll into contact with the battery cell located at the coating station along the radial direction and / or axial direction of the battery cell to position the battery cell. The positioning device 300 can limit the position of the battery cell at the coating station to prevent the battery cell from shifting when the adsorption wheel 1 is performing the coating operation, thereby affecting the coating effect.

[0101] like Figure 2 As shown, the feeding device 100 is further designed to include a feeding turntable 101 and a turntable driver 102.

[0102] The turntable driver 102 is connected to the feeding turntable 101 and is used to drive the feeding turntable 101 to rotate. Multiple carrier slots 103 are evenly distributed around the circumference of the feeding turntable 101 for conveying the battery cell carrier 400 loaded with battery cells. It is understood that in this application, the battery cell carrier 400 and the battery cells enter and exit the feeding turntable 101 together. Therefore, to allow the battery cells to rotate, the battery cell carrier 400 can be designed to rotate on the carrier slot 103, or the battery cells can rotate on the battery cell carrier 400; the specific design is not limited. Using a turntable feeding method to convey the battery cells saves more space compared to a conveyor belt design, resulting in a more compact overall structure.

[0103] like Figure 3 as well as Figure 4 As shown, further, regarding the design of the positioning device 300, taking radial limiting as an example, it specifically includes a pressing mechanism 301, which includes a pressing turntable 22, a pressing fixed plate 21, and multiple pressing components 23.

[0104] The top pressure turntable 22 is positioned above the feeding turntable 101 and rotates synchronously with the feeding turntable 101 on the same axis. It can be understood that the top pressure turntable 22 is also synchronously driven and controlled by the turntable driver 102.

[0105] Multiple pressing components 23 are circumferentially arranged on the top of the pressing turntable 22 and correspond one-to-one with the carrier slots 103. The pressing component 23 includes a pressing slider 231 and a pressing roller 232. The pressing slider 231 is slidably connected to the top of the pressing turntable 22 in a straight line direction between the center line of its corresponding carrier slot 103 and the rotation axis of the feeding turntable 101. This straight line direction is parallel to the top surface of the pressing turntable 22 and is a horizontal straight line direction, so that the pressing slider 231 can slide directly towards the battery cell on its corresponding carrier slot 103. In terms of sliding fit, it can be a conventional guide rail sliding fit, which will not be described in detail.

[0106] The top pressure roller 232 is rotatably mounted on one end of the top pressure slider 231 that extends out of the top pressure turntable 22, and can roll into contact with the battery cell on the corresponding carrier slot 103. The number of the top pressure roller 232 is preferably designed to be two, and they are arranged side by side, which can better limit the battery cell.

[0107] The top pressure fixing plate 21 is fixed above the top pressure turntable 22 and is coaxially arranged with the top pressure turntable 22. It can be understood that the top pressure fixing plate 21 is a fixed design, that is, it does not rotate. Its fixing method can be connected to an external fixing mechanism through a connecting structure such as a connecting rod to achieve fixing. The specific method is not limited.

[0108] The bottom of the top pressure fixing plate 21 is provided with a first track groove (not shown in the figure), and the top of the top pressure slider 231 is provided with a first guide roller 233 that extends into the first track groove and moves along the first track groove to achieve sliding on the top pressure turntable 22. It can be understood that the top pressure turntable 22 rotates to drive each top pressure slider 231 to rotate. Since the first guide roller 233 on each top pressure slider 231 is affected by the track of the first track groove, when the first guide roller 233 on the top pressure slider 231 moves to the position of the track groove with a relatively convex shape, the top pressure slider 231 can slide outward. When the first guide roller 233 moves from the position of the convex track groove to the position of the normal arc segment track groove, the top pressure slider 231 achieves reset sliding. Based on this design, when the first guide roller 233 moves to the position corresponding to the coating station of the first track groove, the top pressure slider 231 slides to the state where the top pressure roller 232 contacts the battery cell on the coating station, so that the battery cell can be simultaneously limited from the radial direction when it reaches the coating station.

[0109] like Figure 5 as well as Figure 6 As shown, further, regarding the design of the positioning device 300, taking axial limiting as an example, it specifically includes a pressing mechanism 302.

[0110] The pressing mechanism 302 includes a pressing turntable 31, a pressing fixed cylinder 32, and multiple pressing components 33.

[0111] The pressure turntable 31 is positioned above the feeding turntable 101 and rotates synchronously with the feeding tray on the same axis. It can be understood that the pressure turntable 31 is synchronously driven and controlled by the turntable driver 102.

[0112] In this application, such as Figure 2 As shown, in order to further enhance the positioning function, the positioning device 300 includes both a top pressing mechanism 301 and a bottom pressing mechanism 302. Taking this as an example, the bottom pressing turntable 31 can be specifically set above the top pressing fixed plate 21.

[0113] Multiple pressing components 33 are arranged circumferentially on the top of the pressing turntable 31 and correspond one-to-one with the vehicle slots 103;

[0114] The pressing assembly 33 includes a pressing fixed seat 338, a pressing sliding seat 332, and a pressing roller 337.

[0115] The pressing fixed seat 338 is fixed on the top of the pressing turntable 31. The pressing sliding seat 332 is slidably installed on the pressing fixed seat 338 along the axial direction of the battery cell on the corresponding carrier slot 103. It can be understood that the pressing sliding seat 332 is slidably installed on the pressing fixed seat 338 in the vertical direction. Its sliding engagement method can also be a guide rail sliding engagement, which will not be elaborated in detail.

[0116] The pressure roller 337 is rotatably mounted on the pressure sliding seat 332, and its bottom end can contact the top of the battery cell on the corresponding carrier slot 103, thereby restricting the battery cell in the axial direction and fixing the battery cell, but without affecting the rotation of the battery cell.

[0117] The pressing fixing cylinder 32 is fixed above the pressing turntable 31 and is coaxially arranged with the pressing turntable 31. It can be understood that the pressing fixing cylinder 32 is a fixed design, that is, it does not rotate. It can also be fixed by connecting to an external fixing mechanism through a connecting structure. No specific restrictions are made.

[0118] The pressing and fixing cylinder 32 has a second track groove 321 circumferentially arranged, specifically, the second track groove 321 can be circumferentially arranged on the outer circumferential surface. The pressing sliding seat 332 has a second guide roller 331 that extends into and moves along the second track groove 321 to achieve sliding on the pressing and fixing seat 338. It can be understood that when the second guide roller 331 moves to the downward protruding track groove position on the second track groove 321, the pressing sliding seat 332 can slide downward. When it moves to the track groove position at the normal height, the pressing sliding seat 332 can return to its original sliding position, thereby realizing the up and down movement control of the pressing roller 337. Based on this design, when the second guide roller 331 moves to the position of the second track groove 321 corresponding to the coating station, the pressing sliding seat 332 slides to the state where the pressing roller 337 contacts the battery cell at the coating station, so that the battery cell can be simultaneously limited in the axial direction when it reaches the coating station.

[0119] The top pressing mechanism 301 and the bottom pressing mechanism 302 of this application do not require additional power drive, which saves energy and makes the overall structure more compact.

[0120] like Figure 6 As shown, further, a fixing block 333 is provided on the side of the pressing sliding seat 332 facing away from the pressing fixed seat 338. A guide block 335 is also slidably installed on the pressing sliding seat 332 below the fixing block 333. A first elastic element 334 is connected between the guide block 335 and the fixing block 333. The first elastic element 334 can be a spring. In order to make the elastic action of the first elastic element 334 more stable, a guide post can be connected between the guide block 335 and the fixing block 333, and then the spring can be sleeved on the guide post to achieve a more stable elastic action. A downwardly extending pressure rod 336 is also connected to the guide block 335, and the pressing roller 337 is rotatably sleeved on the end of the pressure rod 336 away from the guide block 335. When the second track groove 321 has a large error due to processing reasons, the stroke of the pressure rod 336 may be too large, which may damage the battery cell. Therefore, the first elastic element 334 can adaptively eliminate the stroke error and avoid damaging the battery cell. Additionally, a pressure sensor (not shown in the figure) can be installed at the end of the pressure roller 337 to detect the contact pressure with the battery cell and avoid excessive compression.

[0121] like Figure 2 As shown, the coating device 200 further includes a coating follow-up adjustment mechanism 204 and a coating fixing plate 205.

[0122] The tape supply mechanism 203, the adhesive application mechanism 201, and the cutting mechanism 202 are installed on the adhesive coating fixing plate 205 for integrated setup. The adhesive coating follow-up adjustment mechanism 204 is connected to the adhesive coating fixing plate 205 and is used to drive the adhesive coating fixing plate 205 to move and rotate in the horizontal direction, so that the tape on the circumference of the adsorption wheel 1 is always in tangential contact with the battery cell in the adhesive coating station.

[0123] The adhesive coating follow-up adjustment mechanism 204 may specifically include an X-axis displacement module 2042, a Y-axis displacement module 2041, and an R-axis rotation module 2043. The R-axis rotation module 2043 is connected to the fixed plate 205 and is used to drive the tape supply mechanism 203, the adhesive application mechanism 201, and the cutting mechanism 202 to rotate as a whole. The X-axis displacement module 2042 is connected to the R-axis rotation module 2043 and is used to drive the tape supply mechanism 203, the adhesive application mechanism 201, and the cutting mechanism 202 to move as a whole along the X-axis direction by driving the rotation module to move. The Y-axis displacement module 2041 is connected to the X-axis displacement module 2042 and is used to drive the tape supply mechanism 203, the adhesive application mechanism 201, and the cutting mechanism 202 to move as a whole along the Y-axis direction by driving the X-axis displacement module 2042 to move. The X-axis and Y-axis moving modules can be controlled in conjunction to drive the adhesive application mechanism 201 to move in the XY plane, ensuring that the adsorption wheel 1 remains in close contact with the end of the battery cell. The R-axis rotating module 2043 can drive the adsorption wheel 1 to rotate as a whole during its horizontal movement, ensuring that the adhesive tape on the adsorption wheel 1 remains tangent to the battery cell. The adhesive application follow-up adjustment mechanism 204 allows the feeding turntable 101 to perform adhesive application without stopping, achieving high-speed on-flight adhesive application. In this application, the X-axis and Y-axis moving modules can be slide modules, while the R-axis rotating module 2043 can be a DD motor; no specific limitation is imposed.

[0124] It should be noted that the coating follow-up adjustment mechanism 204 can be adapted not only to turntable feeding to achieve high-speed flying coating, but also to linear feeding methods such as conveyor belts to achieve high-speed flying coating.

[0125] like Figure 1 as well as Figure 2 As shown, the coating device 200 is preferably designed to have two units, with two corresponding coating stations, each corresponding to one of the coating devices 200.

[0126] While one coating device 200 completes the coating operation on the battery cell at its corresponding coating station and resets, another coating device 200 simultaneously begins the coating operation on the battery cell at its corresponding coating station. In other words, when the first coating device 200 finishes coating the first battery cell and resets, the second coating device 200 begins coating the second battery cell; when the second coating device 200 finishes coating the second battery cell and resets, the first coating device 200 begins coating the third battery cell, thus achieving synchronous coating and further improving coating efficiency. The number of coating devices 200 is related to the rotational speed of the feeding turntable 101, and the specific number can be determined according to actual needs and is not limited.

[0127] like Figure 7 As shown, the cutting mechanism 202 is further designed to include a cutter 42 and a cutting driver 41.

[0128] The cutting driver 41 is connected to the cutter 42 and is used to drive the cutter 42 to move. The circumferential surface of the adsorption wheel 1 is provided with a clearance groove to avoid the cutter 42. The cutting driver 41 can be a telescopic cylinder, and there is no specific limitation. In addition to avoiding damage caused by collision between the cutter 42 and the adsorption wheel 1, the clearance groove can also divide the circumferential surface of the adsorption wheel 1 into multiple adsorption areas. The number of adsorption areas is related to the diameter of the adsorption wheel 1 and the required width of the tape.

[0129] like Figure 8 as well as Figure 9 As shown, the cutting mechanism 202 further includes a pressure block 43. The pressure block 43 can press down the tape during cutting to prevent the tape from shifting when it is cut.

[0130] The fit between the pressure block 43 and the cutter 42 can be as follows:

[0131] The drive end of the cutting driver 41 is connected to a blade holder 44, and the cutter 42 is mounted on the blade holder 44. The pressure block 43 is elastically and telescopically connected to the blade holder 44 via a second elastic member 45, and is provided with a clearance hole 431 for the cutter 42 to extend movably. The second elastic member 45 can also be a spring. In order to make the elastic effect of the second spring more stable, a screw can be fixed on the blade holder 44, the pressure block 43 can be movably sleeved on the screw, and the spring can be sleeved on the screw and located between the blade holder 44 and the pressure block 43, thereby achieving a more stable elastic effect. In this design, the cutting mechanism 202 uses a cutting driver 41 shared by the pressure block 43 and the cutter 42. During cutting, the cutting driver 41 drives the cutter holder 44 to move. The pressure block 43 first contacts the tape on the circumference of the suction wheel 1. The cutter holder 44 continues to move to squeeze the second elastic member 45 so that the cutter 42 extends out of the pressure block 43 through the clearance hole 431, so that the pressure block 43 presses against the tape while cutting the tape.

[0132] like Figures 10 to 12 As shown, the cutting mechanism 202 further includes a pressure block 43 and a first pressure driver 46. It is understood that the pressure block 43 may also be set independently of the cutter 42.

[0133] Specifically, the first adhesive pressing driver 46 is mounted on one side of the cutting driver 41 and connected to the adhesive pressing block 43, used to drive the adhesive pressing block 43 to press the tape on the circumference of the adsorption wheel 1. This first adhesive pressing driver 46 can also be a telescopic cylinder, which can be connected to the adhesive pressing block 43 through a corresponding connection structure; no specific limitation is made. Similarly, to accommodate the independently designed adhesive pressing block 43, the structure of the cutter holder 44 can also be adjusted accordingly.

[0134] like Figure 13 As shown, the tape-coating device 200 further includes a tape-pressing roller 51 and a second tape-pressing actuator 52. The second tape-pressing actuator 52 is connected to the tape-pressing roller 51 and is used to drive the tape-pressing roller 51 to roll and contact the tape on the circumference of the suction wheel 1. The second tape-pressing actuator 52 can also be a telescopic cylinder. The tape-pressing roller 51 is located on one side of the cutter 42, allowing the tape to be close to the suction wheel 1 so that the tape can be completely tightened. At the same time, this design can also play a certain tensioning and guiding role.

[0135] In this application, both the pressure block 43 and the pressure roller 51 are provided with a non-stick layer. The non-stick layer can be a Teflon coating or a granular adhesive layer, and there is no specific limitation.

[0136] like Figure 7As shown, the tape coating device 200 further includes a tensioning and guiding mechanism 206, which is disposed between the tape application mechanism 201 and the tape supply mechanism 203, and is used to tension and guide the conveyed tape. Specifically, the tensioning and guiding mechanism 206 may include a tension driver, a tension wheel, and guide wheels. The tension driver may be a telescopic cylinder connected to the tension wheel to drive its movement. There may be multiple guide wheels, and the specific design is not limited. The tensioning and guiding mechanism 206 can be designed with reference to existing technology or directly used, and will not be described in detail here.

[0137] like Figure 14 As shown, this application also discloses a coating method, applied to the coating apparatus 200 of Embodiment 1 or Embodiment 2, including the following steps:

[0138] S1, the feeding device transports the vertically rotatable battery cell to the overmolding station. It should be noted that, taking the example of a carrier slot 103 that can also be configured on the feeding turntable 101, the battery cell can be fed entirely into the carrier slot 103 on the feeding turntable 101 along with the battery cell carrier 400, and then rotate with the feeding turntable 101 to the overmolding station. Of course, if the feeding turntable 101 is directly configured with a battery cell carrier 400, then the battery cell can be directly fed into the battery cell carrier 400 on the feeding turntable 101; there are no specific limitations.

[0139] S2, the cutting mechanism cuts the tape on the circumferential surface of the adsorption wheel. It should be noted that this process is also the process of the tape-removing device 200.

[0140] S3, the adsorption wheel driver drives the adsorption wheel to rotate, causing the tape cut from the circumference of the adsorption wheel to make tangential contact with the battery cell at the coating station, thus completing the coating. It should be noted that, taking the coating device 200 in Embodiment 2 above as an example, in this process, the coating follow-up adjustment mechanism 204 can drive the adhesive application mechanism 201 to move, ensuring that the tape on the adsorption wheel 1 of the adhesive application mechanism 201 always maintains tangential contact with the battery cell, achieving in-flight coating. Furthermore, taking two coating devices 200 as an example, after coating the first battery cell, the coating follow-up mechanism of the first coating device 200 drives the adhesive application mechanism 201 to return to its initial position. At this time, by designing the speed of the feeding turntable 101 and the position of the second coating device 200, it is possible to coat the second battery cell while the adhesive application mechanism 201 of the first coating device 200 returns to its initial position, thus achieving high-speed coating.

[0141] The coating equipment and coating method provided in this application have been described in detail above. For those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the embodiments of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An encapsulation apparatus, characterized in that, The device comprises a feeding device (100) and a coating device (200); The feeding device (100) is used for conveying the vertical and rotatable battery cell to the coating station; The coating device (200) is arranged on one side of the feeding device (100) and comprises a tape feeding mechanism (203), a tape sticking mechanism (201) and a cutting mechanism (202); The tape sticking mechanism (201) comprises an adsorption wheel (1) and an adsorption wheel driver used for driving the adsorption wheel (1) to rotate; The adsorption wheel (1) is provided with adsorption holes used for adsorbing the tape on the circumferential surface, and the tape on the circumferential surface of the adsorption wheel (1) is tangentially contacted with the battery cell on the coating station; The tape feeding mechanism (203) is used for feeding the tape to the tape sticking mechanism (201); The cutting mechanism (202) is used for cutting the tape adsorbed on the circumferential surface of the adsorption wheel (1) in sections; The device further comprises a positioning device (300); the positioning device (300) is in rolling contact with the battery cell on the coating station in the radial direction of the battery cell and / or the axial direction of the battery cell, so as to position the battery cell; the positioning device (300) comprises a top pressing mechanism (301) and / or a downward pressing mechanism (302); The feeding device (100) comprises a feeding turntable (101); The feeding turntable (101) is provided with a carrier clamping (103) used for conveying the battery cell carrier (400) loaded with the battery cell; The top pressing mechanism (301) comprises a top pressing turntable (22), a top pressing fixed disc (21) and a plurality of top pressing assemblies (23); the top pressing turntable (22) is arranged above the feeding turntable (101) and synchronously rotates with the feeding turntable (101); a plurality of the top pressing assemblies (23) are circumferentially arranged on the top of the top pressing turntable (22) and correspond to the carrier clamping (103) one by one; the top pressing assembly (23) comprises a top pressing sliding block (231) and a top pressing roller (232); the top pressing sliding block (231) is slidingly connected to the top of the top pressing turntable (22) in the straight line direction between the center line of the corresponding carrier clamping (103) and the rotation axis of the feeding turntable (101); the top pressing roller (232) is rotatably installed on one end of the top pressing sliding block (231) extending out of the top pressing turntable (22) and is in rolling contact with the battery cell on the corresponding carrier clamping (103); the top pressing fixed disc (21) is fixed above the top pressing turntable (22) and is coaxially arranged with the top pressing turntable (22); the top pressing fixed disc (21) is provided with a first track groove on the bottom; the top of the top pressing sliding block (231) is provided with a first guide roller (233) extending into the first track groove and moving along the first track groove, so as to realize the sliding on the top pressing turntable (22); when the first guide roller (233) moves to the position corresponding to the coating station in the first track groove, the top pressing sliding block (231) slides to the state that the top pressing roller (232) is in contact with the battery cell on the coating station; The lower pressing mechanism (302) comprises a lower pressing turntable (31), a lower pressing fixed cylinder (32) and a plurality of lower pressing assemblies (33); the lower pressing turntable (31) is arranged above the feeding turntable (101) and rotates synchronously with the feeding turntable (101); the plurality of lower pressing assemblies (33) are circumferentially arranged on the top of the lower pressing turntable (31) and correspond to the carrier clamping positions (103) one by one; the lower pressing assembly (33) comprises a lower pressing fixed seat (338), a lower pressing sliding seat (332) and a lower pressing roller (337); the lower pressing fixed seat (338) is installed on the top of the lower pressing turntable (31); the lower pressing sliding seat (332) is slidingly installed on the lower pressing fixed seat (338) along the axial direction of the battery cell on the corresponding carrier clamping position (103); the lower pressing roller (337) is rotatably installed on the lower pressing sliding seat (332) and the bottom end thereof is in contact with the top of the battery cell on the corresponding carrier clamping position (103); the lower pressing fixed cylinder (32) is fixed above the lower pressing turntable (31) and is coaxially arranged with the lower pressing turntable (31); the lower pressing fixed cylinder (32) is circumferentially arranged with a second track groove (321); the lower pressing sliding seat (332) is provided with a second guide roller (331) extending into the second track groove (321) and moving along the second track groove (321) to realize sliding on the lower pressing fixed seat (338); when the second guide roller (331) moves to the position corresponding to the encapsulation station in the second track groove (321), the lower pressing sliding seat (332) slides to the state that the lower pressing roller (337) is in contact with the battery cell on the encapsulation station.

2. The encapsulation apparatus of claim 1, wherein The feeding device (100) comprises a turntable driver (102); The turntable driver (102) is connected with the feeding turntable (101) and is used to drive the feeding turntable (101) to rotate; The feeding turntable (101) is circumferentially and uniformly provided with a plurality of carrier clamping positions (103) for conveying the battery cell carriers (400) loaded with battery cells.

3. The encapsulation apparatus of claim 1, wherein One side of the lower pressing sliding seat (332) away from the lower pressing fixed seat (338) is provided with a fixed block (333); The lower pressing sliding seat (332) is further slidingly provided with a guide block (335) below the fixed block (333); The first elastic member (334) is connected between the guide block (335) and the fixed block (333); The guide block (335) is further connected with a downwardly extending pressing rod (336); The lower pressing roller (337) is rotatably sleeved on one end of the pressing rod (336) away from the guide block (335).

4. The encapsulation apparatus of claim 1, wherein The encapsulation device (200) further comprises an encapsulation follow-up adjusting mechanism (204) and an encapsulation fixed plate (205); The adhesive tape supply mechanism (203), the encapsulation mechanism (201) and the cutting mechanism (202) are installed on the encapsulation fixed plate (205); The encapsulation follow-up adjusting mechanism (204) is connected with the encapsulation fixing plate (205) and is used to drive the encapsulation fixing plate (205) to move horizontally and rotate, so that the adhesive tape on the peripheral surface of the adsorption wheel (1) is always tangent to the battery cell in the encapsulation station.

5. The encapsulation apparatus of claim 4, wherein, The encapsulation device (200) is two; The encapsulation station is two and corresponds to the encapsulation device (200) one by one; When the encapsulation device (200) completes the encapsulation work on the battery cell in the corresponding encapsulation station and resets, the other encapsulation device (200) is just encapsulating the battery cell in the corresponding encapsulation station.

6. The encapsulation apparatus of claim 1, wherein The cutting mechanism (202) comprises a cutter (42) and a cutting driver (41); The cutting driver (41) is connected with the cutter (42) and is used to drive the cutter (42) to move; The peripheral surface of the adsorption wheel (1) is provided with a clearance groove for avoiding the cutter (42).

7. The encapsulation apparatus of claim 6, wherein The cutting mechanism (202) further comprises a glue pressing block (43); The driving end of the cutting driver (41) is connected with a cutter seat (44); The cutter (42) is installed on the cutter seat (44); The glue pressing block (43) is elastically connected to the cutter seat (44) through a second elastic element (45) and is provided with a clearance hole (431) for the cutter (42) to move out.

8. The encapsulation apparatus of claim 6, wherein, The cutting mechanism (202) further comprises a glue pressing block (43) and a first glue pressing driver (46); The first glue pressing driver (46) is installed on one side of the cutting driver (41) and is connected with the glue pressing block (43) and is used to drive the glue pressing block (43) to press against the adhesive tape on the peripheral surface of the adsorption wheel (1).

9. The encapsulation apparatus of claim 1, wherein, The encapsulation device (200) further comprises a glue pressing roller (51) and a second glue pressing driver (52); The second glue pressing driver (52) is connected with the glue pressing roller (51) and is used to drive the glue pressing roller (51) to rollingly contact the adhesive tape on the peripheral surface of the adsorption wheel (1).

10. The encapsulation apparatus of claim 1, wherein, The encapsulation device (200) further comprises a tensioning guide mechanism (206); The tensioning guide mechanism (206) is arranged between the adhesive taping mechanism (201) and the adhesive tape feeding mechanism (203) and is used to tension and guide the conveyed adhesive tape.

11. A process for encapsulation, characterized in that The application is applied to the encapsulation device (200) in any one of claims 1 to 10 and comprises the following steps: The feeding device (100) transports the vertical and rotatable battery cell to the encapsulation station; The cutting mechanism (202) cuts the adhesive tape on the peripheral surface of the adsorption wheel (1); The adsorption wheel driver drives the adsorption wheel (1) to rotate, so that the cut adhesive tape on the peripheral surface of the adsorption wheel (1) is tangent to the battery cell in the encapsulation station, thereby completing the encapsulation.

Images