Laminating machine

Abstract

The utility model relates to the technical field of batteries, and discloses a lamination machine which comprises a lamination mechanism and a carrying mechanism, and the carrying mechanism is arranged above the lamination mechanism and is used for carrying pole pieces; the carrying mechanism comprises a guide rail; the at least two carrying parts are movably connected to the guide rail, are arranged in parallel and are used for carrying the positive plate and the negative plate; and the at least two motors are in independent driving connection with the carrying parts, so that each carrying part independently moves on the guide rail. According to the carrying mechanism, the at least two motors and the at least two carrying components are integrated on the same guide rail, each carrying component operates independently, the multiple carrying components are integrated on the same carrying mechanism, the carrying path between the carrying mechanisms can be shortened, the action takt is high, and the carrying efficiency is improved. The operation efficiency of lamination operation on the lamination mechanism is effectively improved; and moreover, the structure of the lamination machine is simplified, and the occupied space can be reduced on the premise of improving the working efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of battery technology, specifically relating to a stacking machine. Background Technology

[0002] Batteries are classified into cylindrical batteries and prismatic batteries. Prismatic batteries are manufactured using a high-speed lamination process, resulting in a square hard-shell battery. This process is simple, offers high safety performance, high energy density, and long cycle life, making them suitable for a wide range of applications.

[0003] In the existing technology, during the electrode stacking process, the stacking machine needs to ensure that the electrodes on both the positive electrode alignment platform and the negative electrode alignment platform can meet the requirements of the electrode stacking process. That is, an electrode handling module must be compatible with the electrode receiving tray stacking alignment platform and the electrode stacking production process requirements. The electrode handling module must be equipped with two independent material handling systems to transport the electrodes from the electrode receiving conveyor belt to the electrode alignment platform and from the electrode alignment platform to the stacking platform, respectively.

[0004] However, common material handling systems are large in size. In order to simultaneously transport positive and negative electrode sheets, multiple material handling systems usually need to be placed side by side, which makes the overall structure occupy a large area, resulting in a long transport path for the electrode sheets, poor cycle time of the operation, and affecting the improvement of transport efficiency. Utility Model Content

[0005] To address the shortcomings of the prior art, this utility model provides a stacking machine. The conveying mechanism integrates at least two motors and at least two conveying components on the same guide rail. Each conveying component operates independently, thereby integrating multiple conveying components onto the same conveying mechanism. This shortens the conveying path between different conveying mechanisms, increases the cycle time, and effectively improves the efficiency of stacking operations on the stacking mechanism. Furthermore, this method simplifies the structure of the stacking machine, reducing space occupation while improving operational efficiency.

[0006] The technical effects to be achieved by this utility model are realized through the following aspects:

[0007] This utility model provides a stacking machine, including

[0008] A lamination mechanism used for laminating positive electrode plates, separators, and negative electrode plates; and

[0009] A transport mechanism is disposed above the stacking mechanism and is used for transporting the electrode sheets;

[0010] The transport mechanism includes:

[0011] guide;

[0012] At least two transport components are movably connected to the guide rail, and the transport components are arranged side by side. The transport components are used to transport the positive electrode and the negative electrode; and

[0013] At least two motors are independently driven and connected to the transport components, so that each transport component can move independently on the guide rail.

[0014] In some implementations, the conveying mechanism has two sets of conveying components. Each set of conveying components includes a first conveying component and a second conveying component. The first conveying component is movably connected to both ends of the guide rail, and the second conveying component is disposed between the first conveying components and movably connected to the guide rail.

[0015] In some implementations, each group of transport components shares a guide rail, the guide rails of the two groups of transport components are arranged side by side, and the two groups of transport components are both mounted on the same frame.

[0016] In some implementations, the stacking mechanism includes a stacking assembly, a straightening assembly, and a transfer assembly. The straightening assembly is disposed on both sides of the stacking assembly, and the transfer assembly is located on the side of the stacking assembly away from the straightening assembly.

[0017] The first conveying component is movably disposed between the transfer component and the correction component;

[0018] The second transport component is movably disposed between the alignment component and the stacking component.

[0019] In some implementations, the alignment component includes an alignment platform and a correction component, wherein the correction component is connected to the lower end of the alignment platform to drive the alignment platform to adjust its position until the electrode is aligned.

[0020] In some implementations, the correction component includes a second rotating component, an X-direction moving component, and a Y-direction moving component connected to the lower end of the correction platform, wherein the Y-direction moving component is connected between the X-direction moving component and the second rotating component.

[0021] In some implementations, the transfer assembly includes a belt for moving the electrode to the range of motion of the first transport member; the first transport member moves between the transfer assembly and the correction assembly.

[0022] In some implementations, the stacking mechanism further includes an NG box, which is movably connected between the correction component and the transfer component. In some implementations, the first conveying component includes a first lifting component, a first rotating component, and a first suction component connected to the guide rail. The first rotating component is connected to the first suction component to drive the first suction component to rotate. The first lifting component is connected to the first rotating component to drive the first rotating component and the first suction component to lift.

[0023] In some implementations, the second conveying component includes a second lifting member and a second suction member movably connected to the guide rail. The second lifting member is connected to the second suction member to drive the second suction member to perform lifting and lowering actions.

[0024] In summary, this utility model has at least the following advantages:

[0025] The stacking machine provided by this utility model integrates at least two motors and at least two transport components on the same guide rail, and each transport component operates independently. This integrates multiple transport components onto the same transport mechanism, which can shorten the transport path between various transport mechanisms and effectively improve the operating efficiency of stacking operations on the stacking mechanism. Furthermore, the above method simplifies the structure of the stacking machine and reduces space occupation while improving operating efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the stacking machine in Example 1.

[0027] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle.

[0028] Figure 3 for Figure 1 A magnified structural diagram of part B.

[0029] Figure 4 This is a schematic diagram of the stacking machine in Example 2.

[0030] Figure 5 This is a schematic diagram of the NG box in Example 2.

[0031] Figure 6 This is a top view of the correction component in Example 3.

[0032] Marked in the image:

[0033] 1. Stacking mechanism; 11. Stacking assembly; 111. Diaphragm swing roller assembly; 112. Stacking platform; 12. Alignment assembly; 121. Alignment platform; 122. Correction assembly; 131. Belt; 14. NG box; 2. Transport mechanism; 211. First transport component; 2111. First lifting component; 2112. First rotating component; 2113. First suction component; 212. Second transport component; 2121. Second lifting component; 2122. Second suction component; 22. Guide rail. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] Example 1:

[0037] Please see the appendix Figure 1 The stacking machine of this utility model includes a stacking mechanism 1 and a conveying mechanism 2. The stacking mechanism 1 is used for stacking positive electrode sheets, separators and negative electrode sheets; the conveying mechanism 2 is arranged above the stacking mechanism 1 and is used for conveying the electrode sheets.

[0038] The conveying mechanism 2 includes a guide rail 22; at least two conveying components movably connected to the guide rail 22 and arranged side by side, the conveying components being used to convey the positive and negative electrode plates; and at least two motors independently connected to the conveying components, so that each conveying component moves independently on the guide rail 22. The motors can be linear motors, and multiple independent motors independently control each conveying component.

[0039] In one embodiment, four transport components can be provided, each transporting the positive electrode twice and the negative electrode twice, respectively. Correspondingly, four motors are also provided, each independently driving one of the transport components. The actions of the four transport components can be divided into the first and second transports of the positive electrode, and the first and second transports of the negative electrode. Moving the electrode from the input end to the stacking end in two steps reduces the travel distance of each transport component and enhances the cycle time of the transport operation.

[0040] Specifically, the stacking mechanism 1 has an electrode input area, an electrode alignment area, and a stacking area during the stacking process. The first handling of the electrode is moving the electrode from the electrode input area to the electrode alignment area, and the second handling of the electrode is moving the electrode from the electrode alignment area to the stacking area.

[0041] In this embodiment, the stacking machine, during the transport process, uses a motor to control one of the transport components to move on the guide rail 22, enabling the transport component to independently move the electrode from the electrode input area to the electrode alignment area. Simultaneously or sequentially, another motor drives another transport component to move on the guide rail 22, enabling the electrode to independently move from the electrode alignment area to the stacking area. Because each motor is independently responsible for each transport component, the actions are independent, effectively improving the flexibility of movement, reducing repetitive movements, and increasing the cycle time, thereby improving transport efficiency.

[0042] In addition, in this structure, each motor operates independently for each transport component. The motion path design for electrode transport does not need to be optimized and coordinated with the overall frame. It can be flexibly designed directly according to the actual transport situation, with fewer restrictions and convenient adjustment of transport actions.

[0043] In some embodiments, please refer to the appendix Figure 1 The conveying mechanism 2 includes two sets of conveying components. Each set includes a first conveying component 211 and a second conveying component 212. The first conveying components 211 are movably connected to both ends of the guide rail 22, and the second conveying component 212 is disposed between the first conveying components 211 and movably connected to the guide rail 22. Specifically, the first conveying component 211 is used for the first conveying of the electrode, that is, moving the electrode from the electrode input area to the electrode alignment area. The second conveying component 212 is used for the second conveying of the electrode, that is, moving the electrode from the electrode alignment area to the stacking area.

[0044] Furthermore, each group of transport components shares a guide rail 22, and the guide rails 22 of the two groups of transport components are arranged side by side, with both groups of transport components mounted on the same frame. This sharing of the guide rail 22 and frame further simplifies the structure of the transport mechanism 2, shortens the distance between the various transport components, improves the movement efficiency of the transport components, and thus improves the overall operating efficiency of the stacking machine, while also reducing the space occupied by the transport mechanism 2. Simultaneously, the simplified structure also improves maintainability. Of course, the guide rails 22 of different groups of transport components can be integrally connected by setting a stator between two guide rails 22. Alternatively, the guide rails 22 can be unconnected, depending on the actual situation.

[0045] In some embodiments, please refer to the appendix Figure 2The first conveying component 211 includes a first lifting component 2111, a first rotating component 2112, and a first suction component 2113 connected to the guide rail 22. The first rotating component 2112 is connected to the first suction component 2113 to drive the first suction component 2113 to rotate. The first lifting component 2111 is connected to the first rotating component 2112 to drive the first rotating component 2112 and the first suction component 2113 to lift. The first suction component 2113 can use an existing negative pressure differential method to achieve its suction function. The first rotating component 2112 uses an existing rotary cylinder to achieve its rotation function. The first lifting component 2111 uses an existing lifting cylinder to achieve its lifting function.

[0046] In this manner, the first transport component 211 transports the electrode sheet as follows: the first lifting component 2111 moves the first adsorption component 2113 downward until the first adsorption component 2113 contacts the electrode sheet, thus adsorbing the electrode sheet. The first lifting component 2111 rises to a certain height, and the motor drives the first adsorption component 2113 to move to the electrode sheet alignment area. Additionally, based on the required position of the electrode sheet, the first rotating component 2112 rotates the electrode sheet by a certain angle until it is rotated to the appropriate position. The electrode sheet is then placed on the electrode sheet alignment area, achieving segmented transport of the electrode sheet by the first transport component 211. This effectively shortens the transport stroke and allows for the rotation of the electrode sheet, providing a convenient position for the next process of electrode tab stacking.

[0047] In some embodiments, please refer to the appendix Figure 3 The second conveying component 212 includes a second lifting member 2121 and a second adsorption member 2122 movably connected to the guide rail 22. The second lifting member 2121 is connected to the second adsorption member 2122 to drive the second adsorption member 2122 to perform lifting and lowering actions. The second lifting member 2121 drives the second adsorption member 2122 to descend to the electrode sheet, and the second adsorption member 2122 adsorbs the electrode sheet. Then, the second lifting member 2121 drives the second adsorption member 2122 to move upward to a certain position. Finally, the second lifting member 2121 slides on the guide rail 22 via a motor, so that the second conveying component 212 moves from the electrode sheet alignment area to the stacking area, which facilitates rapid loading of stacked sheets and thus improves stacking efficiency.

[0048] Through the coordinated action of the first transport component 211 and the second transport component 212, the path of the electrode is divided into two ends. The transport frequency of the first transport component 211 and the second transport component 212 can be flexibly adjusted according to the stacking production situation, so as to realize the efficient movement and stacking of the electrode. Moreover, the path design of the transport components is flexible, realizing the efficient cooperation of the first transport component 211 and the second transport component 212 and improving the adaptability.

[0049] Example 2:

[0050] The difference between this embodiment and Embodiment 1 is that, please refer to... Figure 4 The stacking mechanism 1 of this embodiment includes a stacking assembly 11, a straightening assembly 12, and a transfer assembly. The straightening assembly 12 is disposed on both sides of the stacking assembly 11, and the transfer assembly is located on the side of the stacking assembly 11 away from the straightening assembly 12. The first transport component is movably disposed between the transfer assembly and the straightening assembly; the second transport component is movably disposed between the straightening assembly and the stacking assembly.

[0051] Specifically, the transfer assembly is located in the electrode input area. The stacking assembly 11 is used for the stacking of the negative electrode, separator, and positive electrode. The alignment assembly 12 is used for fine-tuning and aligning the electrode positions to ensure the quality of subsequent stacking. The stacking assembly 11 can use a separate swing motor to achieve the stacking action, and the swing motor can be integrated into the frame of the conveying mechanism, thereby simplifying the mechanism.

[0052] In this embodiment, the stacking mechanism 1 operates as follows: the electrode sheets are moved from the previous station to the electrode input end of the stacking machine via a transfer component. A transport component moves the electrode tabs from the transfer component to the alignment component 12, and then another transport component moves the tabs from the alignment component 12 to the stacking component 11 for stacking. This method, combined with the movement of the transport component, enables segmented transport of the electrode sheets, ensuring efficient transport. Furthermore, the alignment component 12 allows for adjustment and alignment of the electrode sheet placement, ensuring accurate stacking and effectively guaranteeing stacking quality.

[0053] For details, please refer to the appendix. Figure 4 The stacking assembly 11 includes a diaphragm swing roller component 111 and a stacking platform 112. The stacking platform 112 is located below the diaphragm swing roller component 111 and is used for the alternating stacking of positive electrode sheets, diaphragms, and negative electrode sheets. The diaphragm swing roller component 111, in conjunction with the second conveying component 212, swings the diaphragm left and right to facilitate the stacking of positive or negative electrode sheets on the diaphragm. The second conveying component 212 moves between the alignment component 12 and the stacking assembly 11. The diaphragm swing roller component 111 moves in a Z-shaped motion to facilitate the sequential stacking of positive and negative electrode sheets.

[0054] With the above-mentioned stacking assembly 11, the diaphragm swing roller component 111 pulls the film by swinging left and right, and then the second transport component 212 places the electrode on the diaphragm. Then the diaphragm swing roller component 111 swings back so that the diaphragm covers the electrode originally placed on the diaphragm. Then the second transport component 212 places the electrode on the diaphragm again. The above actions are repeated, and the positive electrode and negative electrode are stacked on the diaphragm in sequence. The stacking action is compact and conducive to efficient stacking.

[0055] In some embodiments, see Figure 4The alignment component 12 includes an alignment platform 121 and a correction component 122. The correction component 122 is connected to the lower end of the alignment platform 121 to adjust the position of the alignment platform 121 until the electrode is aligned. With this configuration, the alignment platform 121 is used to place the electrode, and the correction component 122 is used to move the alignment platform 121 to adjust and align the electrode, thereby ensuring the accuracy of the stacking.

[0056] In some embodiments, the transfer assembly includes a belt 131 for moving the electrode sheet to the range of motion of the first transport component 211; the first transport component 211 moves between the transfer assembly and the alignment assembly 12. In this way, the electrode sheet from the previous station is moved onto the transfer assembly, ensuring smooth and continuous movement of the electrode sheet, thereby ensuring sufficient and timely electrode sheet feeding.

[0057] In some embodiments, see Figure 5 The stacking mechanism 1 also includes an NG box 14, which is movably connected between the alignment component 12 and the transfer component. In this way, when the alignment component 12 cannot adjust the electrode to a suitable stacking state, the electrode is moved from the alignment table 121 to the NG box 14 by a transport component, and continues to move to the transfer component station to prepare for the adsorption of the next electrode. Since the NG box 14 is located between the alignment component 12 and the transfer component, the electrode NG recycling process is compact and has a high cycle time, reducing the slow electrode conveying caused by NG electrode operation and effectively ensuring electrode conveying efficiency.

[0058] Example 3:

[0059] The difference between this embodiment and Embodiment 1 is that, please refer to... Figure 6 In this embodiment, the correction component 122 includes a second rotating component, an X-direction moving component, and a Y-direction moving component connected to the lower end of the correction platform 121. The Y-direction moving component is connected between the X-direction moving component and the second rotating component.

[0060] Specifically, the second rotating component uses an existing rotary cylinder to achieve rotation. The X-axis and Y-axis moving components use existing cylinders or sliding components to achieve movement.

[0061] In this embodiment, the correction component 122 can rotate the alignment platform 121 via the second rotating component, thereby driving the electrode to rotate. Then, the alignment platform 121 is moved accordingly by the X-direction moving component and the Y-direction moving component, thereby achieving the alignment of the electrode, ensuring the accuracy of subsequent electrode placement, and thus ensuring the quality of the stacking.

[0062] In addition, the correction components 12 are provided with correction spaces on both sides, which can meet the correction swing angle of the correction platform 121, avoid collision with the components next to the correction components 12, and ensure the correction safety of the correction platform 121.

[0063] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 utility model according to the specific circumstances.

[0064] In the description of this utility model, 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, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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 this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0065] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0066] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0067] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A stacking machine, characterized in that, include: Stacking mechanism, used for stacking positive electrode plates, separators, and negative electrode plates; as well as A conveying mechanism is disposed above the stacking mechanism and is used for conveying the electrode sheets; The transport mechanism includes: guide; At least two transport components are movably connected to the guide rail, and the transport components are arranged side by side. The transport components are used to transport the positive electrode and the negative electrode. At least two motors are independently driven and connected to the transport components, so that each transport component can move independently on the guide rail.

2. The stacking machine according to claim 1, characterized in that, The conveying mechanism includes two sets of conveying components. Each set of conveying components includes a first conveying component and a second conveying component. The first conveying component is movably connected to both ends of the guide rail, and the second conveying component is disposed between the first conveying components and movably connected to the guide rail.

3. The stacking machine according to claim 2, characterized in that, Each group of transport components shares a guide rail, the guide rails of the two groups of transport components are arranged side by side, and the two groups of transport components are both mounted on the same frame.

4. The stacking machine according to claim 2, characterized in that, The stacking mechanism includes a stacking assembly, a straightening assembly, and a transfer assembly. The straightening assembly is disposed on both sides of the stacking assembly, and the transfer assembly is disposed on the side of the stacking assembly away from the straightening assembly. The first conveying component is movably disposed between the transfer component and the correction component; The second transport component is movably disposed between the alignment component and the stacking component.

5. The stacking machine according to claim 4, characterized in that, The alignment component includes an alignment platform and a correction component. The correction component is connected to the lower end of the alignment platform to drive the alignment platform to adjust its position until the electrode is aligned.

6. The stacking machine according to claim 5, characterized in that, The correction component includes a second rotating component, an X-direction moving component, and a Y-direction moving component connected to the lower end of the correction platform. The Y-direction moving component is connected between the X-direction moving component and the second rotating component.

7. The stacking machine according to claim 4, characterized in that, The transfer assembly includes a belt for moving the electrode to the range of motion of the first transport component; the first transport component moves between the transfer assembly and the correction assembly.

8. The stacking machine according to claim 4, characterized in that, The stacking mechanism also includes an NG box, which is movably connected between the correction component and the transfer component.

9. The stacking machine according to claim 2, characterized in that, The first conveying component includes a first lifting component, a first rotating component, and a first suction component connected to the guide rail. The first rotating component is connected to the first suction component to drive the first suction component to rotate. The first lifting component is connected to the first rotating component to drive the first rotating component and the first suction component to lift.

10. The stacking machine according to claim 2, characterized in that, The second conveying component includes a second lifting member and a second suction member that are movably connected to the guide rail. The second lifting member is connected to the second suction member to drive the second suction member to perform lifting and lowering actions.

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