Cell film tearing device

Abstract

The utility model relates to a battery cell film tearing device. The battery cell film tearing device comprises a placing table, a feeding mechanism, a manipulator and a glue taking hand, the placing table is used for placing a battery cell; the feeding mechanism is provided with a transmission belt and a plurality of pieces of gummed paper, and the gummed paper is attached to the transmission belt at intervals; the manipulator is used for lifting the battery cell on the placing table; the adhesive tape taking hand comprises a clamping jaw and a driving mechanism, the clamping jaw is used for clamping the adhesive tape, the driving mechanism is connected with the clamping jaw, and the driving mechanism is used for driving the clamping jaw to move; and the clamping jaw moves to the transmission belt through the driving mechanism and clamps the gummed paper, or moves to the manipulator and attaches the gummed paper to the battery cell protective film, or moves the gummed paper attached to the battery cell protective film in a direction far away from the battery cell. According to the scheme provided by the invention, the problem of poor appearance and performance caused by film tearing can be solved, and the appearance quality of the battery cell is improved.

Description

Technical Field

[0001] This application relates to the field of battery processing technology, and in particular to a cell film peeling device. Background Technology

[0002] Soft-pack batteries are the third generation of lithium batteries developed based on the original steel-cased, aluminum-cased, and plastic-cased batteries. Soft-pack batteries have advantages such as being lighter, thinner, having better safety performance, higher energy density, more stable discharge platform, better power performance, and being environmentally friendly and pollution-free. Therefore, soft-pack batteries are widely used in many fields such as electric vehicles, mobile power supplies, digital electronic products, smart wearable products, and electric toys.

[0003] In related technologies, the production process of soft-pack batteries usually requires the removal of the protective film from the cells. If the precision of removing the protective film is not high enough, it can easily lead to problems such as poor appearance and performance of the cells, resulting in a decrease in the pass rate of the produced cells and thus affecting production efficiency. Utility Model Content

[0004] To solve or partially solve the problems existing in the related technologies, this application provides a cell film-removing device, which can solve the problems of poor appearance and performance caused by film removal and improve the appearance quality of the cell.

[0005] The first aspect of this application provides a battery cell film-removing device, which includes a placement platform, a feeding mechanism, a robotic arm, and a glue-removing hand; the placement platform is used to place battery cells; the feeding mechanism is provided with a transmission belt and a plurality of adhesive strips, the adhesive strips being spaced apart on the transmission belt; the robotic arm is used to lift the battery cells on the placement platform; the glue-removing hand includes a gripper and a driving mechanism, the gripper is used to grip the adhesive strips, the driving mechanism is connected to the gripper, and the driving mechanism drives the gripper to move; the gripper moves to the transmission belt via the driving mechanism and grips the adhesive strips, or moves to the robotic arm and applies adhesive strips to the battery cell protective film, or moves the adhesive strips applied to the battery cell protective film away from the battery cell.

[0006] Furthermore, the driving mechanism includes a first translation mechanism, a second translation mechanism, and a lifting mechanism. The second translation mechanism is mounted on the first translation mechanism, and the first translation mechanism drives the second translation mechanism to move along a first direction. The lifting mechanism is mounted on the second translation mechanism, and the second translation mechanism drives the lifting mechanism to move along a second direction, wherein the first direction is perpendicular to the second direction. The gripper is mounted on the lifting mechanism, and the lifting mechanism drives the gripper to move up and down.

[0007] Furthermore, the robotic arm is located in the first direction of the transmission belt.

[0008] Furthermore, the feeding mechanism includes a feeding wheel, a take-up wheel, and at least one tensioning wheel. One end of the transmission belt is wound around the feeding wheel, which is used to release the transmission belt. The other end of the transmission belt is wound around the take-up wheel, which is used to wind up the transmission belt. The tensioning wheel supports the transmission belt.

[0009] Furthermore, one end of the adhesive tape is attached to the transmission belt, while the other end protrudes beyond the transmission belt. The extension direction of the adhesive tape is perpendicular to the transmission direction of the transmission belt.

[0010] Furthermore, the robotic arm includes a base, a lifting module, and an adsorption mechanism. The lifting module is mounted on the base, and the adsorption mechanism is mounted on the lifting module. The lifting module drives the adsorption mechanism to move up and down, and the adsorption mechanism is used to adsorb battery cells.

[0011] Furthermore, the adsorption mechanism includes a rotating mechanism and an adsorption unit. The adsorption unit is mounted on the rotating mechanism, and the rotating mechanism drives the adsorption unit to rotate. The adsorption unit is used to adsorb battery cells.

[0012] Furthermore, the adsorption unit includes a support, an opening and closing mechanism, and a pair of first suction nozzles. The support is mounted on the rotating mechanism, which drives the support to rotate. The opening and closing mechanism is mounted on the support, and the two first suction nozzles are mounted on the opening and closing mechanism, which drives the two first suction nozzles to move closer to or further away from each other.

[0013] Furthermore, the cell peeling device also includes a color detection mechanism located above the robotic arm, which is used to detect the color of the cell surface.

[0014] Furthermore, the upper surface of the placement platform is provided with a second suction nozzle, which fixes the battery cell by vacuum adsorption.

[0015] The technical solution provided in this application may include the following beneficial effects: by using a glue-grabbing hand to pick up adhesive paper from the transmission belt, and cooperating with a robotic arm to lift the battery cell with protective film from the placement table, the glue-grabbing hand is used to stick the adhesive paper onto the protective film of the battery cell and then peel off the protective film, thereby improving the positioning accuracy of film peeling, avoiding damage to the battery cell during the film peeling process, which would result in poor appearance and performance of the battery cell, and insufficient film peeling accuracy. This solves the problem of poor appearance and performance caused by film peeling, improves the appearance quality of the battery cell, and improves the performance quality of the battery cell.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] The above and other objects, features and advantages of this application will become more apparent from the following description of exemplary embodiments of this application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components.

[0018] Figure 1 This is a schematic diagram of the structure of the cell film-peeling device shown in the embodiments of this application;

[0019] Figure 2 This is another structural schematic diagram of the cell film-peeling device shown in the embodiments of this application;

[0020] Figure 3 This is a front view of the cell film-peeling device shown in the embodiments of this application;

[0021] Figure 4 This is a schematic diagram of a robotic arm shown in an embodiment of this application;

[0022] Figure 5 This is a schematic diagram of the structure of the bracket shown in the embodiment of this application.

[0023] Reference numerals: 1. Placement platform; 2. Feeding mechanism; 21. Feeding wheel; 22. Rewinding wheel; 23. Tensioning wheel; 3. Robotic arm; 31. Base; 32. Lifting module; 33. Rotation mechanism; 34. Support; 35. Opening and closing mechanism; 36. First suction nozzle; 4. Adhesive-taking hand; 41. Gripper; 42. First translation mechanism; 43. Second translation mechanism; 44. Lifting mechanism; 5. Color detection mechanism. Detailed Implementation

[0024] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0025] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing 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, and therefore should not be construed as a limitation of this application.

[0027] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] In related technologies, the production process of pouch batteries typically involves peeling off the protective film from the cells. If the precision of peeling is insufficient, it can easily lead to defects in the cell's appearance and performance, resulting in a lower yield and impacting production efficiency. To address these issues, this application provides a cell film-peeling device that solves the problems of appearance and performance defects caused by film peeling, thereby improving the cell's appearance quality.

[0029] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0030] Figure 1 This is a schematic diagram of the structure of the cell film-peeling device shown in the embodiments of this application; Figure 2 This is another structural schematic diagram of the cell film-tearing device shown in the embodiments of this application.

[0031] See Figure 1 and Figure 2The battery cell protective film removal device includes a placement platform 1, a feeding mechanism 2, a robotic arm 3, and a glue-removing hand 4. The placement platform 1 is used to place battery cells with protective films. The feeding mechanism 2 has a conveyor belt and multiple adhesive strips, which are spaced apart on the conveyor belt and can transport the adhesive strips to the glue-removing hand 4. The robotic arm 3 is used to lift the battery cells from the placement platform 1. The glue-removing hand 4 includes a gripper 41 and a drive mechanism. The gripper 41 is used to grip and release the adhesive strips. The drive mechanism is connected to the gripper 41, which drives the gripper 41 to move between the conveyor belt and the robotic arm 3. The gripper 41 can be moved to the conveyor belt via the drive mechanism, and then grip the adhesive strips from the conveyor belt; after the robotic arm 3 lifts the battery cell with protective film from the placement platform 1, the gripper 41 can be moved to the robotic arm 3 via the drive mechanism to attach the adhesive strips to the battery cell with protective film. After the adhesive tape is applied to the battery cell with the protective film, the gripper 41 can move the adhesive tape on the protective film away from the battery cell through the drive mechanism, and peel the adhesive tape and protective film off the surface of the battery cell.

[0032] See Figure 1 and Figure 2 Since the protective film is usually wrapped around the battery cell in a U-shape, in the actual film removal process, the gripper 41 is first moved to the arc of the U-shaped protective film, and then the gripper 41 is raised so that the gripper 41 can stick the adhesive tape to the protective film on the upper surface of the battery cell. The drive mechanism then controls the gripper 41 to move away from the battery cell, so that part of the protective film on the upper surface of the battery cell is torn off. Then the gripper 41 moves down so that the sticker is below the lower surface of the battery cell. Then the drive mechanism drives the gripper 41 to move towards the battery cell, so that part of the protective film on the lower surface of the battery cell will detach from the battery cell. Then the drive mechanism drives the gripper 41 to move away from the battery cell, and the sticker can then peel the entire protective film off the battery cell.

[0033] This application utilizes a glue-grabbing hand 4 to pick up adhesive tape from a transmission belt, and a robotic arm 3 to lift the battery cell with a protective film from a placement table 1. The glue-grabbing hand 4 then applies the adhesive tape to the protective film of the battery cell and peels off the protective film. This improves the positioning accuracy of film peeling, avoids damaging the battery cell during the film peeling process, and prevents problems such as poor appearance and performance of the battery cell, as well as insufficient film peeling accuracy. This solves the problem of poor appearance and performance caused by film peeling, and improves the appearance quality and performance quality of the battery cell.

[0034] Figure 3 This is a front view of the cell film-peeling device shown in the embodiments of this application.

[0035] See Figure 3The driving mechanism includes a first translation mechanism 42, a second translation mechanism 43, and a lifting mechanism 44. These mechanisms can be cylinders or lead screw slide modules. The second translation mechanism 43 is mounted on the first translation mechanism 42, and the first translation mechanism 42 drives the second translation mechanism 43 to move along a first direction. The lifting mechanism 44 is mounted on the second translation mechanism 43, and the second translation mechanism 43 drives the lifting mechanism 44 to move along a second direction. The first and second directions are horizontal, and the first direction is perpendicular to the second direction. A gripper 41 is mounted on the lifting mechanism 44, and the lifting mechanism 44 drives the gripper 41 to move up and down. The first translation mechanism 42, the second translation mechanism 43, and the lifting mechanism 44 enable the gripper 41 to move horizontally along the first and second directions, and also enable the gripper 41 to rise and fall, allowing the gripper 41 to move in multiple directions. This facilitates the gripper 41 in picking up adhesive tape from the conveyor belt and attaching it to the protective film of the battery cell, and also facilitates the gripper 41 in peeling off the protective film from different models of battery cells using the adhesive tape. In some embodiments, the robotic arm 3 is located in the first direction of the transmission belt, and the first translation mechanism 42 enables the gripper 41 to move between the transmission belt and the robotic arm 3.

[0036] See Figure 2 and Figure 3 The feeding mechanism 2 includes a feeding wheel 21, a take-up wheel 22, and at least one tensioning wheel 23. One end of the transmission belt is wound around the feeding wheel 21, which is used to release the transmission belt. The other end of the transmission belt is wound around the take-up wheel 22, which is used to wind up the transmission belt. The take-up wheel 22 is driven to rotate by a motor. When the take-up wheel 22 rotates, the transmission belt is driven from the feeding wheel 21 to the take-up wheel 22, thereby continuously supplying adhesive paper to the gripper 41. The tensioning wheel 23 is used to support the transmission belt, keeping it taut, so that the gripper 41 can grip and pick up the adhesive paper on the transmission belt. One end of the adhesive paper is attached to the transmission belt, and the other end is exposed outside the transmission belt. The extension direction of the adhesive paper is perpendicular to the transmission direction of the transmission belt, so that the gripper 41 can pick up the adhesive paper from the transmission belt. Specifically, the extension direction of the adhesive paper is the same as the second direction. The lifting mechanism 44 is driven to move along the second direction by the second translation mechanism 43, so that the gripper 41 can move closer to or further away from the transmission belt.

[0037] Figure 4 This is a schematic diagram of a robotic arm shown in an embodiment of this application.

[0038] See Figure 3 and Figure 4The robotic arm 3 includes a base 31, a lifting module 32, and an adsorption mechanism. The lifting module 32 is mounted on the base 31 and can be a lead screw slide module or a cylinder. The adsorption mechanism is mounted on the lifting module 32, and the lifting module 32 drives the adsorption mechanism to rise and fall. The adsorption mechanism is used to adsorb battery cells. By driving the adsorption mechanism to rise and fall through the lifting module 32, the adsorption mechanism can be lowered onto the placement platform 1 to adsorb the battery cells with protective films. Then, by driving the adsorption mechanism to rise through the lifting module 32, the adsorption mechanism lifts the battery cells with protective films.

[0039] Figure 5 This is a schematic diagram of the structure of the bracket shown in the embodiment of this application.

[0040] See Figure 3-5 In some embodiments, the adsorption mechanism includes a rotating mechanism 33 and an adsorption unit. The adsorption unit is mounted on the rotating mechanism 33, which drives the adsorption unit to rotate. The adsorption unit is used to adsorb the battery cell. Specifically, the rotating mechanism 33 can be a servo motor, with its rotor extending vertically. The adsorption unit can rotate around its vertically extending central axis, adsorbing the battery cell and causing it to rotate. This allows the grippers 41 to apply adhesive tape to the protective film of the battery cell from multiple angles. Preferably, the adsorption unit includes a support 34, a tensioning mechanism 35, and a pair of first suction nozzles 36. The support 34 is mounted on a rotating mechanism 33, which drives the support 34 to rotate. The tensioning mechanism 35 is mounted on the support 34, and the two first suction nozzles 36 are mounted on the tensioning mechanism 35. The first suction nozzles 36 are connected to an external suction cylinder or suction pump via pipes. The tensioning mechanism 35 can drive the two first suction nozzles 36 to move closer or further apart. The tensioning mechanism 35 includes two telescopic cylinders, each connected to one first suction nozzle 36. When the adsorption unit needs to adsorb larger battery cells, the two telescopic cylinders control the two first suction nozzles 36 to move further apart, so that the first suction nozzles 36 can adsorb onto the corners of the larger battery cells. When the adsorption unit needs to adsorb smaller battery cells, the two telescopic cylinders control the two first suction nozzles 36 to move closer together, so that the first suction nozzles 36 can adsorb onto the corners of the smaller battery cells. This facilitates the adsorption of battery cells of different types and sizes by the first suction nozzles 36, improving the versatility of the adsorption mechanism.

[0041] See Figure 1The battery cell film removal device also includes a color detection mechanism 5, which is located above the robotic arm 3. The color detection mechanism 5 is used to detect the color of the battery cell surface. In actual use, since the color of the protective film is different from the color of the battery cell surface, when the adhesive tape completely removes the protective film from the battery cell surface, the color of the protective film will not appear on the battery cell surface. However, by detecting the surface color of the battery cell through the color detection mechanism 5, it can be determined whether the protective film has been completely removed. The color detection mechanism 5 can be a common vision system on the market. The camera in the vision system takes a picture of the battery cell surface to understand the color of the battery cell surface. The use of a vision system to detect the color of the object surface is existing technology. This application does not improve its technology, so this application will not elaborate on its principle and detailed structure.

[0042] See Figure 4 and Figure 5 In some embodiments, the upper surface of the placement platform 1 is provided with a second suction nozzle, which is connected to an external vacuum cylinder or vacuum pump through a pipe. The second suction nozzle can fix the battery cell by vacuum adsorption. When the first suction nozzle 36 needs to adsorb the battery cell, the first suction nozzle 36 adsorbs the battery cell first, the second suction nozzle releases the battery cell, and then the first suction nozzle 36 adsorbs the battery cell again, and the lifting mechanism 44 lifts the battery cell.

[0043] The solution of this application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to this application. Furthermore, it is understood that the steps in the method of this application embodiment can be adjusted, combined, and deleted according to actual needs, and the modules in the device of this application embodiment can be combined, divided, and deleted according to actual needs.

[0044] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An electrode cell tape stripping apparatus, characterized by, The utility model relates to a kind of battery film pasting machine, including: Placement table, for placing battery cell; Feeding mechanism, the feeding mechanism is equipped with transmission belt and multiple adhesive papers, the adhesive paper is intervally pasted on the transmission belt; Mechanical hand, the mechanical hand is used to lift the battery cell on the placement table; Adhesive paper taking hand, the adhesive paper taking hand includes gripper and drive mechanism, the gripper is used to clamp the adhesive paper, the drive mechanism is connected with the gripper, and the drive mechanism is used to drive the gripper to move;The gripper moves to the transmission belt by the drive mechanism and clamps the adhesive paper, or moves to the mechanical hand and pastes adhesive paper on the battery cell protective film, or moves the adhesive paper pasted on the battery cell protective film to the direction away from battery cell; The drive mechanism includes first translation mechanism, second translation mechanism and lifting mechanism, the second translation mechanism is installed to the first translation mechanism, the first translation mechanism drives the second translation mechanism to move along the first direction, the lifting mechanism is installed to the second translation mechanism, and the second translation mechanism drives the lifting mechanism to move along the second direction, and the first direction is perpendicular to the second direction;The gripper is installed to the lifting mechanism, and the lifting mechanism drives the gripper to lift.

2. The cell tape opening device of claim 1, wherein: The mechanical hand is located in the first direction of the transmission belt.

3. The cell tape opening device of claim 1, wherein: The feeding mechanism includes feeding wheel, winding wheel and at least one tensioning wheel, one end of the transmission belt is wound on the feeding wheel, the feeding wheel is used to release the transmission belt, the other end of the transmission belt is wound on the winding wheel, the winding wheel is used to wind the transmission belt, and the tensioning wheel supports the transmission belt.

4. The cell tape opening device of claim 1, wherein: One end of the adhesive paper is pasted on the transmission belt, one end of the adhesive paper is exposed outside the transmission belt, and the extension direction of the adhesive paper is perpendicular to the transmission direction of the transmission belt.

5. The cell tape opening device of claim 1, wherein: The mechanical hand includes base, lifting module and suction mechanism, the lifting module is installed to the base, the suction mechanism is installed to the lifting module, the lifting module drives the suction mechanism to lift, and the suction mechanism is used to suck battery cell.

6. The cell tape opening device of claim 5, wherein: The suction mechanism includes rotating mechanism and suction unit, the suction unit is installed to the rotating mechanism, the rotating mechanism drives the suction unit to rotate, and the suction unit is used to suck battery cell.

7. The cell tape stripping device of claim 6, wherein: The suction unit includes support, opening and closing mechanism and a pair of first suction nozzles, the support is installed to the rotating mechanism, the rotating mechanism drives the support to rotate, the opening and closing mechanism is installed to the support, two the first suction nozzles are installed to the opening and closing mechanism, and the opening and closing mechanism drives two the first suction nozzles to approach or move away from each other.

8. The cell tape opening device of claim 1, wherein: Also include color detection mechanism, the color detection mechanism is located above the mechanical hand, and the color detection mechanism is used to detect the color of the surface of battery cell.

9. The cell tape opening device of claim 1, wherein: The upper surface of the placement table is provided with second suction nozzle, and the second suction nozzle fixes battery cell by vacuum suction.

Images