Blanching and transplanting device for enveloped battery cell

By integrating the heating, pressing and transplanting functions into the same component of the cell wrapping and post-hot-scalding transplanting device, the defects caused by the overlap of the blue film are solved, and production space is saved and efficiency is improved.

CN223347817UActive Publication Date: 2025-09-16ANHUI JEE AUTOMATION EQUIP CO LTD
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Patent Information

Application Number
CN202422364515.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-25
Publication Date
2025-09-16
Estimated Expiration
2034-09-25

AI Technical Summary

Technical Problem

In the existing technology, defects such as small bubbles, warping and wrinkles are caused by the overlap of the blue film during the battery cell coating process, and adding a hot stamping station will take up extra space and reduce production efficiency.

Method used

A hot-scalding and transplanting device for battery cells after coating is designed. By integrating the heating, pressing and transplanting functions into the same component, the hot-scalding and transplanting mechanism is used to achieve synchronous heating and clamping, reducing the number of operating stations and improving production efficiency.

Benefits of technology

Without adding hot stamping stations, the defects caused by the overlap of blue film are solved, which saves production space and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a blanching transplanting device for a coated battery cell, which comprises a device body, the device body comprises a coating mechanism, the coating mechanism is used for wrapping a blue film on the side edge of a shell of the battery cell along the movement track of the coated battery cell, and the device body further comprises a moving and cutting module, a transfer platform and a blanching moving and cutting mechanism in sequence, the moving and cutting module is adjacent to the film coating mechanism and can do reciprocating translational motion so as to clamp the battery cell and move and cut the battery cell to the transfer platform; the transfer platform is arranged between the moving and cutting module and the blanching moving and cutting mechanism in parallel and can adsorb and fix the battery cell; the hot-ironing moving and cutting mechanism can clamp the battery cell to lift and translate, a heating plate is arranged on the contact surface of the hot-ironing moving and cutting mechanism and the joint side of the blue film of the battery cell, and the heating plate can be opened and closed to clamp and heat the battery cell. Heating and transplanting are designed into the same assembly through the blanching and moving cutting mechanism, operation stations are reduced, the production space is saved, and equipment actions are saved. And the two groups of transplanting mechanisms act in sequence to separate the side surface wrapping from the blanching transplanting, so that the production efficiency is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of battery core shell coating, in particular to a device for hot-scalding and transplanting battery cores after coating. Background Art

[0002] During the design process of lithium batteries, in order to protect the battery cells and reduce the harm to people and the environment caused by battery leakage, the battery cells will be covered with a protective shell and then wrapped with a layer of blue film.

[0003] However, during the coating process, the blue film forms a lap joint on the side of the battery cell, which can easily lead to defects such as small bubbles, warping, and wrinkles.

[0004] Currently, a common approach to addressing defects caused by overlapping seams in blue films is to increase the lamination force during the lamination process to ensure a tight fit. However, this method is prone to wrinkling and residual stress within the film. This residual stress can reduce the lifespan of the film and may cause it to gradually deform or crack during use.

[0005] Another solution to these problems is to add a separate hot-stamping station, which softens the blue film by heating and allows it to adhere tightly to the cell surface. However, adding hot-stamping stations requires additional production space, as sufficient operating area must be reserved for each hot-stamping station. This also reduces production efficiency, as each station requires separate operation and waiting time.

[0006] From this we can see how to solve defects such as small bubbles, warping and wrinkles caused by the overlap of blue film without adding additional hot stamping stations. Utility Model Content

[0007] In order to solve the above technical problems, the utility model provides a device for hot-scalding and transplanting battery cells after film coating, comprising a device body, the device body comprising a film coating mechanism, the film coating mechanism being used to wrap a blue film around the battery cell shell, and along the movement trajectory of the coated battery cell, the device body further comprises a cutting module, a transfer platform and a hot-scalding and transplanting mechanism, wherein:

[0008] The transfer module is adjacent to the film wrapping mechanism and can move back and forth to clamp the battery cell and transfer it to the transfer platform;

[0009] The transfer platform is arranged parallel to the cutting module and the hot-pressing cutting mechanism, and can adsorb and fix the battery cell;

[0010] The hot ironing and cutting mechanism can clamp the battery cell for lifting and translational movement. A heating plate is provided on the contact surface between the hot ironing and cutting mechanism and the seam side of the battery cell blue film, and the heating plate can be opened and closed to clamp and heat the battery cell.

[0011] Furthermore, a pair of heating plates are arranged opposite to each other, and the ends of the heating plates are connected to each other, and the heating plates and the ends of the heating plates are enclosed to form a rectangular structure.

[0012] Furthermore, the heating plate is provided with a heating tube inside, a temperature controller is provided outside the heating plate, and the heating plate is also provided with a temperature sensor. The temperature controller is connected to the heating tube to set the required temperature of the heating plate.

[0013] Furthermore, a material receiving buffer cylinder is provided on a side of the heating plate away from the transfer platform, and the material receiving buffer cylinder can adjust the opening degree of the opening and closing action of the heating plate.

[0014] Furthermore, the hot-scalding and cutting mechanism also includes a transferring screw and a lifting cylinder. The transferring screw is axially arranged along the translation direction of the hot-scalding and cutting mechanism to drive the axial movement of the hot-scalding and cutting mechanism; the lifting cylinder is vertically arranged relative to the transferring screw to drive the lifting movement of the hot-scalding and cutting mechanism.

[0015] Furthermore, the cutting module is symmetrically provided with two groups of clamps, which clamp the ends of the battery core and are driven by a servo motor.

[0016] Furthermore, the position of the transfer platform is fixed, and the contact surface between the transfer platform and the battery cell is provided with a vacuum suction cup to fix the battery cell.

[0017] Preferably, along the movement trajectory of the coated battery cell, the device body may further include a first cutting mechanism, a hot stamping mechanism, and a second cutting mechanism in sequence, wherein:

[0018] The first transfer mechanism is adjacent to the wrapping mechanism and can move back and forth to clamp the battery cell and transfer it to the hot stamping mechanism;

[0019] The hot stamping mechanism can clamp the battery cell for lifting and lowering movement. The contact surface between the hot stamping mechanism and the seam side of the battery cell blue film is provided with a hot stamping plate, and the hot stamping plate can be opened and closed to clamp and heat the battery cell;

[0020] The second cutting mechanism can be moved horizontally and lifted to the position directly below the hot-pressing mechanism to take the material.

[0021] Furthermore, the blanching mechanism includes a blanching plate and a lifting platform, wherein:

[0022] The lifting platform moves back and forth to carry the battery cells transferred by the first cutting mechanism;

[0023] The hot plates are arranged opposite to each other on both sides of the lifting platform to form a state in which the battery core can be clamped, and the hot plates are provided with a built-in heating tube and an external temperature controller. The temperature controller is connected to the heating tube to set the required temperature of the hot plates.

[0024] Furthermore, the second cutting mechanism includes a material taking clamp, a cutting cylinder and a lifting assembly, wherein:

[0025] The material taking grippers are symmetrically arranged in two groups, and the material taking grippers are in contact with the ends of the battery cells to support the battery cells;

[0026] The transfer cylinder is axially connected to the hot ironing mechanism and can drive the second transfer cylinder to move back and forth;

[0027] The lifting assembly is vertically arranged relative to the transfer cylinder and can drive the second transfer mechanism to move up and down.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The utility model integrates heating, pressing and transplanting into the same component through the hot-scalding and cutting mechanism, thereby reducing the number of operating stations, saving production space and equipment movement; in addition, the package side and hot-scalding and transplanting are separated by the sequential operation of the two groups of transplanting mechanisms, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the present invention;

[0031] Figure 2 This is a partial schematic diagram of the hot-ironing and cutting mechanism in the first embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the overall structure of the second embodiment of the present utility model;

[0033] Figure 4 It is a partial schematic diagram of the hot ironing mechanism and the second cutting mechanism in the second embodiment of the present invention.

[0034] In the picture:

[0035] A, film wrapping mechanism; A1, first wrapping side assembly; A2, second wrapping side assembly;

[0036] B1, cutting module; B10, clamping claw;

[0037] C1, transfer platform;

[0038] D1, hot-scalding and cutting mechanism; D10, heating plate; D11, heating tube; D12, temperature sensor; D13, material receiving buffer cylinder; D14, cutting screw; D15, lifting cylinder;

[0039] B2, the first cutting mechanism;

[0040] C2, hot stamping mechanism; C20, hot stamping plate;

[0041] D2, the second cutting and transferring mechanism; D20, the material picking clamp; D21, the cutting and transferring cylinder; D22, the lifting assembly. DETAILED DESCRIPTION

[0042] In order to make the technical solution and technical effect of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments.

[0043] The utility model aims to provide a device for hot-scalding and transplanting battery cells after film coating, which is used to solve the disadvantage of the prior art that an additional hot-scalding station needs to be set up, and enables the battery cells after film coating to be heated synchronously during the transplanting process.

[0044] Example 1

[0045] refer to Figure 1 The post-coating hot-scalding and transplanting device for battery cells primarily comprises a device body, including a coating mechanism A. Coating mechanism A comprises a first side-wrapping assembly A1 and a second side-wrapping assembly A2. The cylinder of the first side-wrapping assembly A1 extends to wrap one side of the battery cell, while the cylinder of the second side-wrapping assembly A2 extends to wrap the other side. In other words, coating mechanism A is driven by the cylinder to wrap the battery cell casing with blue film. This is a common arrangement for wrapping blue film during battery cell production and will not be elaborated on here. Along the trajectory of the coated battery cell, the device body also sequentially comprises a transfer module B1, a transfer platform C1, and a hot-scalding transfer mechanism D1.

[0046] The transfer module B1 is located adjacent to the film wrapping mechanism A. It is symmetrically equipped with two sets of grippers B10, which grip the ends of the battery cells. Furthermore, both sets of grippers B10 are driven by servo motors. The transfer module B1 is capable of reciprocating translational motion to grip the battery cells and transfer them to the transfer platform C1.

[0047] The transfer platform C1 is parallelly arranged between the transfer module B1 and the hot transfer mechanism D1. The transfer platform C1 is fixed in position, and the contact surface between the transfer platform C1 and the battery cell is equipped with a vacuum suction cup for adsorbing and fixing the battery cell to prevent the battery cell from shifting.

[0048] The hot stamping and cutting mechanism D1 can hold the battery cell and move it up and down. Figure 2 A heating plate D10 is provided on the contact surface between the hot ironing and cutting mechanism D1 and the seam side of the battery cell blue film, and the heating plate D10 can be opened and closed to clamp and heat the battery cell.

[0049] Specifically, a pair of heating plates D10 are positioned opposite each other, their ends connected to each other, forming a rectangular structure. Furthermore, each heating plate D10 has a built-in heating tube D11, an external thermostat, and a temperature sensor D12. The thermostat, connected to the heating tube D11, can set the desired temperature for the heating plate D10. A material receiving buffer cylinder D13 is installed on the side of the heating plate D10 away from the transfer platform C1. This buffer cylinder D13 adjusts the opening and closing of the heating plate D10.

[0050] Furthermore, the hot-scalding and cutting mechanism D1 also includes a transferring screw D14 and a lifting cylinder D15. The transferring screw D14 is axially arranged along the translation direction of the hot-scalding and cutting mechanism D1 to drive the hot-scalding and cutting mechanism D1 to move axially; the lifting cylinder D15 is perpendicularly arranged relative to the transferring screw D14 to drive the hot-scalding and cutting mechanism D1 to move up and down.

[0051] The operation process of Example 1 can be summarized as follows: the transfer module B1 clamps the battery cell and moves axially to the transfer platform C1, puts down the battery cell and returns to the material collection position to wait for material collection; at this time, the transfer screw D14 drives the hot-scalding transfer mechanism D1 to move to the transfer platform C1, and the lifting cylinder D15 drives the hot-scalding transfer mechanism D1 to descend linearly to remove and heat the battery cell and move it to the material collection position.

[0052] Example 2

[0053] refer to Figure 3 The post-coating, blanching and transplanting device for battery cells primarily comprises a main body, including a coating mechanism A. This mechanism comprises a first side-wrapping assembly A1 and a second side-wrapping assembly A2. The cylinder of the first side-wrapping assembly A1 extends to wrap one side of the battery cell, while the cylinder of the second side-wrapping assembly A2 extends to wrap the other side. Specifically, coating mechanism A, driven by the cylinder, wraps the battery cell casing with blue film. This is a common blue film wrapping arrangement during battery cell production and will not be detailed here. Following the trajectory of the coated battery cell, the main body further comprises a first transfer mechanism B2, a blanching mechanism C2, and a second transfer mechanism D2.

[0054] The first transferring and cutting mechanism B2 is adjacent to the wrapping mechanism A and can move back and forth, and is used to clamp the battery cells and transfer them to the hot-pressing mechanism C2.

[0055] The hot ironing mechanism C2 can hold the battery cell and move it up and down. The contact surface between the hot ironing mechanism C2 and the battery cell blue film is provided with a hot ironing plate C20, and the hot ironing plate C20 can be opened and closed to clamp and heat the battery cell. Further, the hot ironing mechanism C2 includes a hot ironing plate C20 and a lifting platform.

[0056] Specifically, the hot plate C20 is positioned opposite each other on either side of the lifting platform to clamp the battery cells. The hot plate C20 has a built-in heating tube and an external thermostat connected to the heating tube to set the desired temperature of the hot plate C20. Clearly, the hot plate C20 in Example 2 is the same as the heating plate D10 in Example 1.

[0057] The lifting platform moves back and forth to carry the battery cells transferred by the first cutting mechanism B2.

[0058] The second cutting mechanism D2 can be moved horizontally and raised to the bottom of the hot-pressing mechanism C2 to take the material. Figure 4 The second cutting mechanism D2 includes a material picking clamp D20, a cutting cylinder D21 and a lifting component D22.

[0059] Two groups of material-removing jaws D20 are symmetrically arranged, and the material-removing jaws D20 contact the ends of the battery cells to support the battery cells.

[0060] The transfer cylinder D21 is axially connected to the hot pressing mechanism C2 and can drive the second transfer cylinder D2 to move back and forth.

[0061] The lifting assembly D22 is vertically arranged relative to the cutting cylinder D21 and can drive the second cutting mechanism D2 to move up and down.

[0062] The operation process of Example 2 can be summarized as follows: the first transfer and cutting mechanism B2 clamps the battery cell and moves axially to the blanching mechanism C2. The blanching mechanism C2 rises to receive and heat the battery cell. After the blanching plate C20 of the blanching mechanism C2 is opened, the second transfer and cutting mechanism D2 moves axially to the bottom of the blanching mechanism C2. The lifting assembly D22 drives the second transfer and cutting mechanism D2 to rise to remove the battery cell to the discharge position.

[0063] Furthermore, the opening and closing range of the heating plate D10 in the first and second embodiments is 100-140 cm, and is compatible with battery cells of various sizes.

[0064] It should be noted that although the first and second embodiments are two parallel technical solutions, the first embodiment realizes the simultaneous heating, clamping and transplanting actions through the hot-scalding and cutting mechanism D1, thereby further saving production space and improving production efficiency.

[0065] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for hot-scalding and transplanting a cell after film coating, comprising a device body, the device body comprising a film coating mechanism (A), the film coating mechanism (A) being used to coat the cell housing with a blue film, characterized in that: Along the movement trajectory of the coated battery cell, the device body further includes a cutting module (B1), a transfer platform (C1) and a hot cutting mechanism (D1), wherein: The transfer module (B1) is adjacent to the film wrapping mechanism (A) and can move back and forth to clamp the battery cell and transfer it to the transfer platform (C1); The transfer platform (C1) is arranged in parallel between the transfer module (B1) and the hot transfer mechanism (D1) and can adsorb and fix the battery core; The hot ironing and cutting mechanism (D1) can clamp the battery cell for lifting and translational movement. A heating plate (D10) is provided on the contact surface between the hot ironing and cutting mechanism (D1) and the seam side of the battery cell blue film, and the heating plate (D10) can be opened and closed to clamp and heat the battery cell.

2. The device for hot-scalding and transplanting battery cells after coating according to claim 1, characterized in that: A pair of heating plates (D10) are arranged opposite to each other, and the ends of the heating plates (D10) are connected to each other, and the heating plates (D10) and the ends of the heating plates (D10) are enclosed to form a rectangular structure.

3. The device for hot-scalding and transplanting battery cells after coating according to claim 1, characterized in that: The heating plate (D10) is provided with a heating tube (D11) built in, a temperature controller is provided externally, and the heating plate (D10) is also provided with a temperature sensor (D12), and the temperature controller is connected to the heating tube (D11) to set the required temperature of the heating plate (D10).

4. The device for hot-scalding and transplanting battery cores after coating according to claim 1 or 2, characterized in that: A material receiving buffer cylinder (D13) is provided on a side of the heating plate (D10) away from the transfer platform (C1), and the material receiving buffer cylinder (D13) can adjust the opening degree of the opening and closing action of the heating plate (D10).

5. The device for hot-scalding and transplanting battery cells after coating according to claim 1, characterized in that: The hot-scalding and cutting mechanism (D1) further comprises a transferring screw (D14) and a lifting cylinder (D15); the transferring screw (D14) is axially arranged along the translation direction of the hot-scalding and cutting mechanism (D1) to drive the hot-scalding and cutting mechanism (D1) to move axially; the lifting cylinder (D15) is vertically arranged relative to the transferring screw (D14) to drive the hot-scalding and cutting mechanism (D1) to move up and down.

6. The device for hot-scalding and transplanting battery cells after coating according to claim 1, characterized in that: The cutting module (B1) is symmetrically provided with two groups of clamping jaws (B10), the clamping jaws (B10) clamp the ends of the battery core, and the clamping jaws (B10) are driven by a servo motor.

7. The device for hot-scalding and transplanting battery cells after coating according to claim 1, characterized in that: The transfer platform (C1) is fixed in position, and a vacuum suction cup is provided on the contact surface between the transfer platform (C1) and the battery core to fix the battery core.

8. The device for hot-scalding and transplanting battery cells after coating according to claim 1, characterized in that: Along the movement trajectory of the coated battery cell, the device body may further include a first cutting mechanism (B2), a hot pressing mechanism (C2) and a second cutting mechanism (D2) in sequence, wherein: The first transfer mechanism (B2) is adjacent to the film wrapping mechanism (A) and can move back and forth to clamp the battery cell and transfer it to the hot pressing mechanism (C2); The hot stamping mechanism (C2) can clamp the battery cell for lifting and lowering movement. A hot stamping plate (C20) is provided on the contact surface between the hot stamping mechanism (C2) and the blue film seam side of the battery cell, and the hot stamping plate (C20) can be opened and closed to clamp and heat the battery cell. The second cutting mechanism (D2) can be moved horizontally and lifted to the position directly below the hot-pressing mechanism (C2) to perform the material-taking action.

9. The device for hot-scalding and transplanting battery cells after coating according to claim 8, characterized in that: The blanching mechanism (C2) includes a blanching plate (C20) and a lifting platform, wherein: The lifting platform reciprocates and lifts to carry the battery cells transferred by the first cutting mechanism (B2); The hot plate (C20) is arranged opposite to each other on both sides of the lifting platform to form a state in which the battery core can be clamped, and the hot plate (C20) has a built-in heating tube. The hot plate (C20) has an external temperature controller, and the temperature controller is connected to the heating tube to set the required temperature of the hot plate (C20).

10. The device for hot-scalding and transplanting battery cells after coating according to claim 8, characterized in that: The second cutting and shifting mechanism (D2) comprises a material taking clamp (D20), a cutting and shifting cylinder (D21) and a lifting assembly (D22), wherein: The material-taking clamping claws (D20) are symmetrically arranged in two groups, and the material-taking clamping claws (D20) are in contact with the ends of the battery cells to support the battery cells; The transfer cylinder (D21) is axially connected to the hot pressing mechanism (C2) and can drive the second transfer mechanism (D2) to perform reciprocating translational motion; The lifting component (D22) is vertically arranged relative to the cutting cylinder (D21) and can drive the second cutting mechanism (D2) to move upward and downward.