Diaphragm turnover mechanism and diaphragm back suction device

Abstract

The utility model discloses a diaphragm turnover mechanism and diaphragm back suction device, diaphragm turnover mechanism includes diaphragm suction plate, suction plate rotation power piece, lift module and translation module, suction plate rotation power piece is connected with diaphragm suction plate to drive the diaphragm suction plate to rotate, lift module is connected with suction plate rotation power piece to drive the diaphragm suction plate to rotate, and translation module is connected with the suction plate rotation power piece to drive the diaphragm suction plate to rotate. And the translation module is connected with the lifting module so as to drive the diaphragm suction plate to do translation motion. During working, the diaphragm suction plate is used for sucking a diaphragm, driving the diaphragm to turn over by 180 degrees and then placing the diaphragm on a lamination station, and the lifting module and the translation module are used for correspondingly adjusting the position of the diaphragm suction plate, so that the structural design is ingenious, the bonding surfaces of different diaphragms and different pole pieces are ensured to be the same, and the diaphragms at the head and the tail of a battery cell are ensured to be single layers; and the requirements of a lamination process are met.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a diaphragm turnover mechanism and a diaphragm back-absorption device. Background Art

[0002] During the battery production process, a separator needs to be placed between two adjacent electrode sheets during the stacking process to ensure relative structural stability. In the existing stacking process, when the unloading gripper removes the battery cell, a clamping member holds the end of the separator, and a cutting mechanism then cuts the separator. The separator puller then moves left to lay a layer of separator on the stacking table. However, because the electrode sheets are loaded from the left, the separator puller needs to move right again, resulting in two layers of separator on the first electrode sheet, making it impossible to meet certain specific process requirements. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a diaphragm flipping mechanism and a diaphragm back-absorption device, aiming to ensure that the bonding surfaces of different diaphragms and different pole pieces are the same, and that the diaphragms at the beginning and end of the battery cell are both single-layer.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] In one aspect, the present invention provides a diaphragm turnover mechanism, comprising:

[0006] Diaphragm suction plate;

[0007] A suction plate rotating power member is connected to the diaphragm suction plate to drive the diaphragm suction plate to rotate;

[0008] A lifting module is connected to the suction plate rotating power member to drive the diaphragm suction plate to move up and down;

[0009] The translation module is connected to the lifting module to drive the diaphragm suction plate to move in translation.

[0010] Furthermore, a suction component is provided on one side of the diaphragm suction plate, and the suction component is used to suck the diaphragm.

[0011] Furthermore, a rotating shaft is provided between the suction plate rotating power component and the diaphragm suction plate, one end of the rotating shaft is connected to the output end of the suction plate rotating power component, and the other end of the rotating shaft is connected to the diaphragm suction plate.

[0012] Furthermore, the lifting module includes a lifting power part, a lifting fixed plate, a lifting plate and a lifting screw. The output end of the lifting power part is transmission-connected to the lifting screw. The lifting screw is installed on the lifting fixed plate. The lifting plate is connected to the lifting screw. The suction plate rotating power part is installed on the lifting plate.

[0013] Furthermore, the translation module includes a translation force member, a translation fixed plate and a translation screw, the output end of the translation force member is transmission-connected to the translation screw, the translation screw is installed on the translation fixed plate, and the lifting fixed plate is connected to the translation screw.

[0014] Furthermore, the axial direction of the rotation of the diaphragm suction plate, the arrangement direction of the lifting screw and the arrangement direction of the translation screw are perpendicular to each other.

[0015] On the other hand, the utility model also provides a diaphragm back-suction device, including a swinging assembly, a stacking table, a diaphragm cutting mechanism, a unloading robot and the above-mentioned diaphragm flipping mechanism, wherein the swinging assembly is located above the stacking table, the diaphragm flipping mechanism is located on the non-stacking loading side of the stacking table, and the diaphragm suction plate of the diaphragm flipping mechanism extends to the area between the swinging assembly and the stacking table; the unloading robot is arranged on the unloading side of the stacking table, and the diaphragm cutting mechanism is arranged between the stacking table and the unloading robot.

[0016] Furthermore, the swing assembly includes a swing roller group and a swing roller moving assembly. The length direction of the swing roller group is parallel to the axis direction of rotation of the diaphragm suction plate. The swing roller group is connected to the swing roller moving assembly through a bracket. The swing roller moving assembly drives the swing roller group to move back and forth above the stacking table.

[0017] Furthermore, the swing roller group includes a first swing roller and a second swing roller arranged side by side, and the diaphragm passes through a gap between the first swing roller and the second swing roller.

[0018] Furthermore, the blanking robot is movably arranged.

[0019] Compared with the prior art, the present invention has the following advantages: a diaphragm flipping mechanism includes a diaphragm suction plate, a suction plate rotating power member, a lifting module, and a translation module. The suction plate rotating power member is connected to the diaphragm suction plate to drive the diaphragm suction plate to rotate, the lifting module is connected to the suction plate rotating power member to drive the diaphragm suction plate to lift and lower, and the translation module is connected to the lifting module to drive the diaphragm suction plate to translate. During operation, the diaphragm is sucked by the diaphragm suction plate, which drives the diaphragm to flip 180 degrees and then placed in the lamination station. The diaphragm suction plate is adjusted to the corresponding position by the lifting module and the translation module. The ingenious structural design ensures that the bonding surfaces of different diaphragms and different pole pieces are the same, and ensures that the diaphragms at the beginning and end of the battery cell are both single-layered, meeting the requirements of the lamination process.

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In addition, in order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A front view of a diaphragm back-suction device provided in a specific embodiment of the present utility model;

[0023] Figure 2 An axonometric view of a diaphragm back-suction device provided in a specific embodiment of the present utility model;

[0024] Figure 3 A top view of a diaphragm back-suction device provided in a specific embodiment of the present utility model;

[0025] Figure 4 A schematic structural diagram of a diaphragm turnover mechanism provided in a specific embodiment of the present utility model;

[0026] Figure 5 Schematic diagram of the working state of the diaphragm back-suction device provided in a specific embodiment of the utility model Figure 1 ;

[0027] Figure 6 Schematic diagram of the working state of the diaphragm back-suction device provided in a specific embodiment of the utility model Figure 2 ;

[0028] Figure 7Schematic diagram of the working state of the diaphragm back-suction device provided in a specific embodiment of the utility model Figure 3 ;

[0029] Figure 8 Schematic diagram of the working state of the diaphragm back-suction device provided in a specific embodiment of the utility model Figure 4 .

[0030] Reference numerals

[0031] 1. Diaphragm turning mechanism; 11. Diaphragm suction plate; 111. Suction component; 12. Suction plate rotating power part; 13. Lifting module; 131. Lifting power part; 132. Lifting fixed plate; 133. Lifting fixed plate; 134. Lifting screw; 14. Translation module; 141. Translation power part; 142. Translation fixed plate; 143. Translation screw; 15. Rotating axis; 2. Frame; 21. Slide rail; 22. Slide; 3. Swinging assembly; 31. Swing roller group; 311. First swing roller; 312. Second swing roller; 32. Bracket; 33. Swing roller moving assembly; 4. Lamination table; 5. Unloading robot 6. Diaphragm cutting mechanism; 100. Diaphragm. DETAILED DESCRIPTION

[0032] The following will be combined with the specific embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0035] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0036] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0038] like Figures 1-8 As shown, an embodiment of the utility model provides a diaphragm flipping mechanism 1, including a diaphragm suction plate 11, a suction plate rotating power part 12, a lifting module 13 and a translation module 14. The diaphragm suction plate 11 is used to suck and fix the diaphragm 100. The suction plate rotating power part 12 is connected to the diaphragm suction plate 11 to drive the diaphragm 100 suction plate 11 to rotate. The lifting module 13 is connected to the suction plate rotating power part 12 to drive the diaphragm suction plate 11 to move up and down. The translation module 14 is connected to the lifting module 13 to drive the diaphragm suction plate 11 to move translationally.

[0039] During operation, the diaphragm suction plate 11 is used to suck the diaphragm 100, driving the diaphragm 100 to flip 180 degrees, and then placed on the stacking station. The diaphragm suction plate 11 is adjusted accordingly through the lifting module 13 and the translation module 14. The structural design is ingenious, so that the bonding surfaces of different diaphragms 100 and different pole pieces are the same, and it is ensured that the diaphragms 100 at the beginning and end of the battery cell are both single-layered, meeting the requirements of the stacking process.

[0040] like Figure 4 As shown, the membrane suction plate 11 is triangular in shape, and a suction component 111 is provided on one side of the membrane suction plate 11 . The suction component 111 is used to suck the membrane 100 .

[0041] The suction component 111 may be a suction cup or a vacuum adsorption device, etc., which absorbs the diaphragm 100 through negative pressure to achieve a stable grip of the diaphragm 100.

[0042] The suction plate rotating power component 12 can be a stepping motor or a servo motor, etc. A rotating shaft 15 is provided between the suction plate rotating power component 12 and the diaphragm suction plate 11. One end of the rotating shaft 15 is connected to the output end of the suction plate rotating power component 12, and the other end of the rotating shaft 15 is connected to the diaphragm suction plate 11 to realize the rotational movement of the diaphragm suction plate 11.

[0043] like Figure 4 As shown, the lifting module 13 includes a lifting power component 131, a lifting fixed plate 132, a lifting plate 133 and a lifting screw 134. The output end of the lifting power component 131 is transmission-connected to the lifting screw 134. The lifting screw 134 is installed on the lifting fixed plate 132. The lifting plate 133 is connected to the lifting screw 134. The suction plate rotating power component 12 is installed on the lifting plate 133.

[0044] The lifting power member 131 can be a stepping motor, a servo motor, etc. The lifting power member 131 is mounted on the top of the lifting fixing plate 132 , and the output shaft of the lifting power member 131 is transmission-connected to one end of the lifting screw rod 134 .

[0045] The lifting fixed plate 132 is a rectangular plate. One end of the lifting screw 134 is connected to the output end of the lifting power member 131, and the other end of the lifting screw 134 is mounted in a hole in the lifting fixed plate 132 via a bearing, ensuring smooth rotation of the lifting screw 134. The lifting screw 134 is connected to the lifting plate 133 via a threaded transmission. When the lifting power member 131 drives the screw to rotate, the action of the thread causes the lifting plate 133 to move axially along the lifting screw 134. The main function of the lifting plate 133 is to support the suction plate rotating power member 12. The lifting plate 133 is provided with a mounting hole for fixing the suction plate rotating power member 12. The up and down movement of the lifting plate 133 drives the suction plate rotating power member 12 and the diaphragm suction plate 11 thereon to rise and fall together.

[0046] The designed lifting module 13 can drive the lifting plate 133 to move up and down, ensuring the taking and placing of the diaphragm suction plate 11.

[0047] like Figure 4As shown, the translation module 14 includes a translation force member 141, a translation fixed plate 142 and a translation screw 143. The output end of the translation force member 141 is transmission-connected to the translation screw 143. The translation screw 143 is installed on the translation fixed plate 142. The lifting fixed plate 132 is connected to the translation screw 143.

[0048] The translation force member 141 can be a servo motor or a stepper motor, etc., which is installed at one end of the translation fixed plate 142. The translation fixed plate 142 is rectangular. The main function of the translation fixed plate 142 is to provide a stable installation platform to ensure the stable operation of the translation force member 141 and the translation screw 143. One end of the translation screw 143 is connected to the output end of the translation force member 141, and the other end of the translation screw 143 is installed in the hole of the translation fixed plate 142 through a bearing to ensure smooth rotation of the screw. The translation screw 143 is connected to the lifting fixed plate 132 through a threaded transmission. When the translation force member 141 drives the screw to rotate, the action of the thread causes the lifting fixed plate 132 to move axially along the translation screw 143. The lifting and fixing plate 132 is a movable component installed on the translation screw 143. It cooperates with the translation screw 143 through a threaded connection, so that the lifting and fixing plate 132 can move horizontally along the translation screw 143, thereby driving the lifting module 13 installed thereon to move horizontally, and then realizing the horizontal movement of the diaphragm suction plate 11.

[0049] By designing the translation module 14 and the lifting module 13 , the flexibility of the diaphragm suction plate 11 in moving in the horizontal direction and the height direction is achieved, thereby ensuring the precise positioning of the diaphragm suction plate 11 .

[0050] like Figure 4 As shown, the axial direction of the diaphragm suction plate 11, the arrangement direction of the lifting screw 134, and the arrangement direction of the translation screw 143 are perpendicular to each other. This design ensures that the diaphragm turnover mechanism 1 can achieve multi-directional adjustment.

[0051] like Figures 1-4As shown, the embodiment of the present invention also provides a diaphragm back-suction device, comprising a frame 2, a swing assembly 3, a stacking table 4, a diaphragm cutting mechanism 6, a blanking robot 5, and the above-mentioned diaphragm flipping mechanism 1. The frame 2 serves as a support and mounting structure, on which are disposed two sets of parallel slide rails 21. A stacking table 4 is disposed on each set of slide rails 21. The two stacking tables 4 can be switched back and forth and operated alternately to achieve uninterrupted stacking. A swing assembly 3 corresponding to the stacking table 4 is also disposed on the slide table 22 of each set of slide rails 21. The rolled diaphragm 100 is guided and pulled by the swing assembly 3 to move the diaphragm 100. The stacking table 4 serves as the stacking station for the pole piece and the diaphragm 100. The diaphragm flipping mechanism 1 is located on the non-stacking loading side of the stacking table 4, and its diaphragm suction plate 11 extends to the area between the swing assembly 3 and the stacking table 4. The unloading robot 5 is arranged on the unloading side of the lamination table 4 , and the diaphragm cutting mechanism 6 is arranged between the lamination table 4 and the unloading robot 5 .

[0052] The working process is as follows:

[0053] like Figures 5 to 8 As shown, after the unloading robot 5 clamps the battery cell and exits the stacking table 4, the diaphragm suction plate 11 approaches and sucks the diaphragm 100 under the action of the translation module 14, and the diaphragm cutting mechanism 6 cuts off the diaphragm 100. The diaphragm suction plate 11 drives the diaphragm 100 to flip 180 degrees under the action of the suction plate rotating power part 12. During the flipping process, the swing component 3 acts synchronously to guide and pull the diaphragm 100 to move to prevent the diaphragm 100 from falling off the diaphragm suction plate 11. After the flipping is completed, the diaphragm suction plate 11 moves to the top of the stacking table 4, and the diaphragm suction plate 11 descends under the action of the lifting module 13 to place the diaphragm 100 on the stacking table 4. Then the diaphragm suction plate 11 exits the stacking station, completing the entire action process, realizing the reversal of the diaphragm 100, and meeting the process requirements of the battery cell.

[0054] like Figure 2 As shown, the swing assembly 3 includes a swing roller assembly 31, a bracket 32, and a swing roller moving assembly 33. The swing roller assembly 31 is located above the lamination table 4. The length of the swing roller assembly 31 is parallel to the axis of rotation of the diaphragm suction plate 11. The swing roller assembly 31 is connected to the swing roller moving assembly 33 via the bracket 32. The swing roller moving assembly 33 is used to drive the swing roller assembly 31 to move back and forth above the lamination table 4. The swing roller assembly 31 includes a first swing roller 311 and a second swing roller 312 arranged side by side. The diaphragm 100 passes through the gap between the first swing roller 311 and the second swing roller 312 and moves under the rolling action of the first swing roller 311 and the second swing roller 312. This prevents the diaphragm 100 from falling off the diaphragm suction plate 11 during the process of the diaphragm 100 being turned by the diaphragm suction plate 11.

[0055] The swing roller moving assembly 33 is a linear drive assembly, such as a linear module or a screw module. It should be noted that the swing assembly 31 is not limited to using the bracket 32 ​​and the swing roller moving assembly 33 to achieve swinging. Any method that can drive the swing roller assembly 31 to move back and forth above the lamination table 4 to achieve swinging of the diaphragm 100 is sufficient.

[0056] In one embodiment, the membrane cutting mechanism 6 includes a cutting tool, a tool holder, and a drive member (e.g., a cylinder or motor). The cutting tool is mounted on the tool holder, and the drive member is connected to the tool holder to drive the cutting tool up and down. When the membrane 100 needs to be cut, the cutting tool extends upward to cut the membrane 100 above the cutting tool. After cutting is completed, the cutting tool returns to its original position to avoid interfering with the operation of other components.

[0057] In one embodiment, the unloading robot 5 includes a mechanical clamp, a clamp frame and a linear motion module. The mechanical clamp is connected to the clamp frame, and the clamp frame is installed on the linear motion module. Under the action of the linear motion module, the mechanical clamp moves toward or away from the stacking table 4.

[0058] A mechanical gripper consists of two or more gripping plates, which are driven to open and close by a drive device (such as a pneumatic cylinder or electric actuator). The gripper is mounted on a gripper frame via connectors to ensure stability and reliability. The gripper is used to grasp and transport battery cells. The gripper frame supports the gripper, providing a secure mounting platform and enabling linear motion through a linear motion module. This module includes a linear motor, guide rails, and a ball screw.

[0059] The linear motion module drives the gripper frame to perform precise linear motion toward or away from the stacking table 4, enabling the gripper to grasp and transport the material. A linear motor rotates the ball screw, which, through threaded transmission, enables the gripper frame to move linearly along the guide rail. The linear motion module drives the gripper frame to perform precise linear motion toward or away from the stacking table 4, enabling the gripper to grasp and transport the material.

[0060] The working process of the blanking robot 5 is as follows:

[0061] The mechanical gripper is positioned away from the stacking table 4, ready to begin a gripping operation. The linear motion module drives the gripper frame toward the stacking table 4, whereupon the gripper opens and aligns with the cell to be gripped. Once the gripper frame is positioned appropriately, the gripper closes, gripping the cell. After gripping the diaphragm 100, the linear motion module drives the gripper frame away from the stacking table 4, transporting the cell to the designated location.

[0062] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A diaphragm turnover mechanism, characterized in that: include: Diaphragm suction plate; A suction plate rotating power member is connected to the diaphragm suction plate to drive the diaphragm suction plate to rotate; A lifting module is connected to the suction plate rotating power member to drive the diaphragm suction plate to move up and down; The translation module is connected to the lifting module to drive the diaphragm suction plate to move in translation.

2. A diaphragm turnover mechanism according to claim 1, characterized in that: A suction component is provided on one side of the diaphragm suction plate, and the suction component is used to suck the diaphragm.

3. The diaphragm turnover mechanism according to claim 1, characterized in that: A rotating shaft is provided between the suction plate rotating power component and the diaphragm suction plate, one end of the rotating shaft is connected to the output end of the suction plate rotating power component, and the other end of the rotating shaft is connected to the diaphragm suction plate.

4. The diaphragm turnover mechanism according to claim 1, characterized in that: The lifting module includes a lifting power part, a lifting fixed plate, a lifting plate and a lifting screw. The output end of the lifting power part is transmission-connected to the lifting screw. The lifting screw is installed on the lifting fixed plate. The lifting plate is connected to the lifting screw. The suction plate rotating power part is installed on the lifting plate.

5. A diaphragm turnover mechanism according to claim 4, characterized in that: The translation module includes a translation force member, a translation fixed plate and a translation screw. The output end of the translation force member is transmission-connected to the translation screw. The translation screw is installed on the translation fixed plate. The lifting fixed plate is connected to the translation screw.

6. A diaphragm turnover mechanism according to claim 5, characterized in that: The axis direction of the diaphragm suction plate rotation, the arrangement direction of the lifting screw and the arrangement direction of the translation screw are perpendicular to each other.

7. A diaphragm back suction device, characterized in that: It includes a swing assembly, a stacking table, a diaphragm cutting mechanism, a blanking robot and the diaphragm flipping mechanism according to any one of claims 1 to 6, wherein the swing assembly is located above the stacking table, the diaphragm flipping mechanism is located on the non-stacking loading side of the stacking table, and the diaphragm suction plate of the diaphragm flipping mechanism extends to the area between the swing assembly and the stacking table; the blanking robot is arranged on the blanking side of the stacking table, and the diaphragm cutting mechanism is arranged between the stacking table and the blanking robot.

8. The diaphragm back-suction device according to claim 7, characterized in that: The swing assembly includes a swing roller group and a swing roller moving assembly. The length direction of the swing roller group is parallel to the axis direction of rotation of the diaphragm suction plate. The swing roller group is connected to the swing roller moving assembly through a bracket. The swing roller moving assembly drives the swing roller group to move back and forth above the stacking table.

9. The diaphragm back-suction device according to claim 8, characterized in that: The swing roller group includes a first swing roller and a second swing roller arranged side by side, and the diaphragm passes through a gap between the first swing roller and the second swing roller.

10. The diaphragm back-suction device according to claim 7, characterized in that: The described blanking robot is movable.

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