Automatic assembling device for button cell

Abstract

The utility model provides a kind of automatic assembly device of button cell, including rack, feeding mechanism, pole piece feeding mechanism, diaphragm feeding mechanism, assembly mechanism and blanking mechanism;The assembly mechanism is set on the rack, for assembling pole piece and diaphragm into battery shell;The blanking mechanism is set on the rack, for taking out the button cell assembled from the assembly mechanism.This automatic assembly device can realize continuous, fast assembly operation, greatly improve the production efficiency of button cell, through accurate mechanical action and automation control, can guarantee the assembly precision and quality stability of button cell, reduce the rate of defective products.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, specifically to an automatic assembly device for button batteries. Background Technology

[0002] Traditional automated production lines for coin cells have two major limitations: 1. The equipment is bulky and unsuitable for laboratory space; 2. The electrolyte injection process is prone to equipment contamination, and electrolyte formulations require frequent adjustments in research settings. Existing technologies cannot meet researchers' needs for small-batch (<100pcs / batch), high-precision (±0.1mm positioning), and repeatable (pressure control accuracy ±5N) assembly. Traditional coin cell assembly relies primarily on manual operation, resulting in low production efficiency, high labor intensity, and inconsistent quality. This device, through modular design and process optimization, achieves standardized assembly without the risk of electrolyte contamination. Utility Model Content

[0003] To address the issues of low automation and low production efficiency in existing button cell battery assembly, this invention provides an automatic assembly device for button cells.

[0004] In one embodiment, the automatic assembly device for the button cell includes a frame 6, a feeding mechanism 2, an electrode feeding mechanism 1, a separator feeding mechanism 4, an assembly mechanism 3, and a discharge mechanism 5.

[0005] The feeding mechanism is mounted on the frame and is used to transport battery casings;

[0006] The electrode feeding mechanism is used to transport the electrode to the assembly mechanism;

[0007] The diaphragm feeding mechanism is used to transport the diaphragm to the assembly mechanism;

[0008] The assembly mechanism is mounted on the frame and is used to assemble the electrode sheets and separator into the battery casing.

[0009] The feeding mechanism is mounted on the frame and is used to remove the assembled button cells from the assembly mechanism.

[0010] In one embodiment, the feeding mechanism includes a conveyor belt, a drive motor, and a positioning component. The drive motor drives the conveyor belt to rotate, and the positioning component is disposed on the conveyor belt for positioning the battery casing.

[0011] In one embodiment, the positioning component includes a positioning block and an elastic element, the positioning block being connected to the conveyor belt via the elastic element.

[0012] In one embodiment, the electrode feeding mechanism includes an electrode feeding tray, an electrode conveying track, and an electrode gripping device. The electrode feeding tray is used to supply electrodes, the electrode conveying track connects the electrode feeding tray and the assembly mechanism, and the electrode gripping device is used to grip the electrodes from the electrode conveying track and place them into the assembly mechanism.

[0013] In one embodiment, the electrode gripping device includes a robotic arm and a vacuum suction cup, the vacuum suction cup being disposed at the end of the robotic arm.

[0014] In one embodiment, the diaphragm feeding mechanism 4 includes a diaphragm feeding tray, a diaphragm conveying track, and a diaphragm gripping device. The diaphragm feeding tray is used to supply diaphragms, the diaphragm conveying track connects the diaphragm feeding tray and the assembly mechanism, and the diaphragm gripping device is used to grip the diaphragm from the diaphragm conveying track and place it into the assembly mechanism 3. In one embodiment, the diaphragm gripping device includes a gripper and a drive cylinder, the gripper being connected to the piston rod of the drive cylinder.

[0015] In one embodiment, the assembly mechanism includes an assembly platform, a pressing device, and a rotating device. The assembly platform is used to place the battery case, electrode, and separator. The pressing device is used to press the electrode and separator into the battery case. The rotating device is used to drive the assembly platform to rotate.

[0016] In one embodiment, the pressing device includes a pressure rod and a drive mechanism, the pressure rod being connected to the output end of the drive mechanism.

[0017] In one embodiment, the feeding mechanism includes a feeding track and a collection box, the feeding track connecting the assembly mechanism and the collection box for conveying the assembled button cells into the collection box.

[0018] The beneficial effects of this utility model are:

[0019] Improved production efficiency: Automated assembly equipment enables continuous and rapid assembly operations, which greatly improves the production efficiency of button cells. Compared with manual assembly, it can increase the production capacity by several times or even dozens of times.

[0020] Reduced labor intensity: Reduced manual operation lowers the labor intensity of workers and also reduces errors and accidents caused by human factors.

[0021] Ensuring product quality: Through precise mechanical movements and automated control, the assembly accuracy and quality stability of button cells can be guaranteed, reducing the defect rate.

[0022] High flexibility: It can be adjusted and adapted to different specifications of button cells to meet diverse production needs. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the manipulator structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the vibratory feeder structure of this utility model; Detailed Implementation

[0027] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0028] The feeding mechanism includes multiple vibratory feeders and conveyor tracks. The vibratory feeders are used to hold components such as battery casings, positive electrode sheets, negative electrode sheets, and separators, and the components are transported to the conveying mechanism via the conveyor tracks. Negative electrode casings, separators, etc. can also be fed using similar vibratory feeders or conveyor belts.

[0029] The conveying mechanism can use chain conveying, belt conveying or pallet conveying to ensure the stable transfer of parts between various workstations.

[0030] The robotic arm in the assembly mechanism can be a multi-axis robot to achieve precise gripping and assembly actions. The pressing device can be pneumatically or hydraulically driven to ensure the force and precision of the assembly.

[0031] Diaphragm assembly unit: consists of a robotic arm, grippers, and a positioning device. The robotic arm picks up the diaphragm from the feed roller and places it onto the positioning device, the grippers hold the diaphragm, and then the positioning device positions the diaphragm in the correct position.

[0032] The feeding mechanism can use a conveyor belt or a robotic arm to transport the finished batteries to the collection box.

[0033] The conveying mechanism uses a conveyor belt or chain drive to transport the parts sequentially to the assembly mechanism. The conveying mechanism is equipped with a positioning device to ensure accurate positioning of the parts during transport.

[0034] The pressing device includes a pressing head and a driving unit. The driving unit drives the pressing head to press the positive electrode sheet, negative electrode sheet, and separator into the battery casing. The pressure and stroke of the pressing head can be adjusted according to different specifications of coin cells. The pressing device can be pneumatically or hydraulically driven to ensure the assembly force and accuracy.

[0035] The unloading mechanism includes a robotic arm and a packaging device. The robotic arm removes the assembled button batteries from the conveying mechanism and places them into the packaging device for packaging.

[0036] In actual use, operators only need to place the battery casing, positive electrode, negative electrode and separator into the vibratory feeder of the feeding mechanism, start the automatic assembly device, and the device can automatically complete the assembly process of the button cell.

[0037] Working principle

[0038] First, place the positive electrode, negative electrode, separator, and housing into their respective feeding devices.

[0039] The feeding device transports the positive electrode, negative electrode, separator, and housing to the assembly mechanism.

[0040] The robotic arm in the assembly mechanism picks up the positive electrode, negative electrode, separator, and housing in sequence and places them onto the positioning device for assembly.

[0041] Detailed assembly process:

[0042] Initialization: Load the components into the rotating tray in sequence (positive electrode shell → positive electrode plate → separator → electrolyte → negative electrode plate → gasket → spring plate → negative electrode shell).

[0043] The robotic arm grasps the following sequentially according to the program:

[0044] a) A vacuum chuck picks up the positive electrode shell and places it on the assembly platform.

[0045] b) After confirming the position with laser alignment, stack the positive electrode, separator, and negative electrode assembly.

[0046] c) Miniature grippers for mounting springs and washers

[0047] d) Finally, place the negative electrode shell and perform pre-compression.

[0048] Packaging stage:

[0049] Method A: Activate the piezoelectric ceramic actuator (not shown in the figure), apply pressure and maintain complete mechanical encapsulation.

[0050] Method B: Transfer to an external packaging machine for hydraulic packaging (pressure curve is programmable).

[0051] After assembly, the robotic arm picks up the button battery from the positioning device and puts it into the collection box.

[0052] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.

Claims

1. An automatic assembly device for button batteries, characterized in that, It includes a frame, a feeding mechanism, an electrode feeding mechanism, a diaphragm feeding mechanism, an assembly mechanism, and a discharge mechanism; The feeding mechanism is mounted on the frame and is used to transport battery casings; The electrode feeding mechanism is used to transport the electrode to the assembly mechanism; The diaphragm feeding mechanism is used to transport the diaphragm to the assembly mechanism; The assembly mechanism is mounted on the frame and is used to assemble the electrode sheets and separator into the battery casing. The feeding mechanism is mounted on the frame and is used to remove the assembled button cells from the assembly mechanism.

2. The automatic assembly device for button batteries according to claim 1, characterized in that, The feeding mechanism includes a conveyor belt, a drive motor, and a positioning component. The drive motor drives the conveyor belt to rotate, and the positioning component is disposed on the conveyor belt for positioning the battery casing.

3. The automatic assembly device for button batteries according to claim 2, characterized in that, The positioning component includes a positioning block and an elastic element, and the positioning block is connected to the conveyor belt through the elastic element.

4. The automatic assembly device for button batteries according to claim 1, characterized in that, The electrode feeding mechanism includes an electrode feeding tray, an electrode conveying track, and an electrode gripping device. The electrode feeding tray is used to supply electrodes. The electrode conveying track connects the electrode feeding tray and the assembly mechanism. The electrode gripping device is used to grip the electrodes from the electrode conveying track and place them into the assembly mechanism.

5. The automatic assembly device for button batteries according to claim 4, characterized in that, The electrode gripping device includes a robotic arm and a vacuum suction cup, with the vacuum suction cup located at the end of the robotic arm.

6. The automatic assembly device for button batteries according to claim 1, characterized in that, The diaphragm feeding mechanism includes a diaphragm feeding tray, a diaphragm conveying track, and a diaphragm gripping device. The diaphragm feeding tray is used to supply diaphragms. The diaphragm conveying track connects the diaphragm feeding tray and the assembly mechanism. The diaphragm gripping device is used to grip the diaphragm from the diaphragm conveying track and place it into the assembly mechanism.

7. The automatic assembly device for button batteries according to claim 6, characterized in that, The diaphragm gripping device includes grippers and a drive cylinder, with the grippers connected to the piston rod of the drive cylinder.

8. The automatic assembly device for button batteries according to claim 1, characterized in that, The assembly mechanism includes an assembly platform, a pressing device, and a rotating device. The assembly platform is used to place the battery case, electrode sheets, and separator. The pressing device is used to press the electrode sheets and separator into the battery case. The rotating device is used to drive the assembly platform to rotate.

9. The automatic assembly device for button batteries according to claim 8, characterized in that, The pressing device includes a pressing rod and a driving mechanism, wherein the pressing rod is connected to the output end of the driving mechanism.

10. The automatic assembly device for button batteries according to claim 1, characterized in that, The feeding mechanism includes a feeding track and a collection box. The feeding track connects the assembly mechanism and the collection box and is used to transport the assembled button batteries into the collection box.

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