Method for tearing and pasting glue on large surface of battery cell

Abstract

The invention discloses a method for tearing and pasting glue on a large surface of a battery cell. The method comprises the following steps: S1, placing sheet glue in a material storage station; s2, a first mechanical arm picks up the sheet glue in the material storage station and transfers the sheet glue to a glue tearing station, lower-layer release paper of the sheet glue is torn off in the glue tearing station, and then the sheet glue is driven to conduct visual detection; s3, the first manipulator drives the detected sheet glue to be attached to the surface of the battery cell; and S4, the battery cell pasted with the sheet glue is conveyed to a second mechanical arm along with the tool plate, the second mechanical arm tears off the release paper on the upper layer of the sheet glue on the battery cell, visual detection is carried out, and glue pasting is completed. According to the invention, a clamp on the four-axis manipulator takes materials through a suction cup, the materials are sent to an adhesive tearing station after the materials are taken, the four-axis manipulator drives the torn sheet adhesive to carry out visual detection and detects whether the adhesive tearing of the lower-layer release paper is completed or not after the adhesive tearing of the lower-layer release paper is completed, and the four-axis manipulator drives the torn sheet adhesive to be pasted into a battery cell after the detection is completed and runs to a subsequent station. And the rear four-axis manipulator drives the clamp to tear the release paper on the upper layer of the battery cell.

Description

Technical Field

[0001] The present invention relates to the technical field of core pasting equipment, and particularly relates to a method for tearing and pasting glue on the large surface of a core. Background Art

[0002] In the process of battery production and manufacturing, the core pasting station plays a crucial role in battery production. It not only enhances the structural strength of the battery, improves the sealing performance, but also optimizes the thermal management system, and promotes the improvement of production efficiency and automation level. With the continuous development of new energy vehicle technology, the requirements for battery performance will be higher and higher. Therefore, continuously optimizing the core pasting process and improving the pasting efficiency and stability will be an important research direction in the future power battery manufacturing field.

[0003] Previously, for the large surface pasting of the core, most of the glue tearing was completed manually with corresponding fixtures, and the accuracy of manual pasting could not be fully guaranteed. This consumed manual labor and had low production efficiency, leaving room for improvement. Therefore, a method for tearing and pasting glue on the large surface of a core is proposed to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a method for tearing and pasting glue on the large surface of a core aiming at the above deficiencies currently.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions: A method for tearing and pasting glue on the large surface of a core, comprising the following steps:

[0006] S1. Place the film glue in the storage station;

[0007] S2. The first manipulator picks up the film glue in the storage station and transfers it to the glue tearing station. In the glue tearing station, the lower release paper of the film glue is torn off, and then the film glue is driven for visual inspection;

[0008] S3. The first manipulator drives the film glue after the inspection is completed and pastes it on the surface of the core;

[0009] S4. The core with the film glue pasted on it is conveyed to the second manipulator along with the tooling plate. The second manipulator tears off the upper release paper of the film glue on the core and conducts visual inspection to complete the glue pasting.

[0010] Further, the step S1 further includes:

[0011] A filling step, where a certain number of film glues are manually placed into two sets of tray components in the storage station. After the photoelectric detection component in the storage station detects that the corresponding side tray component is full, it rotates 180° to the manipulator picking position, and the first manipulator picks up the film glue;

[0012] An alternative feeding step. After the photoelectric detection component detects that the sheet glue in the tray component has been picked up completely, the rotating platform drives the tray component to rotate 180°, and an operator replenishes the empty tray.

[0013] Furthermore, the step S2 further includes:

[0014] A positioning and picking step. The first manipulator moves to the target sheet glue position through a preset path, adjusts the suction cup fixture to correspond to the target sheet glue through the variable pitch component, then the first manipulator controls the suction cup component to descend and make flexible contact with the target sheet glue, and finally adsorbs the target sheet glue through the negative pressure suction cup in the suction cup component.

[0015] Furthermore, the step S2 further includes:

[0016] An adjustment step. An operator adjusts the position of the glue tearing jaw according to the running track of the first manipulator;

[0017] A lower layer release paper peeling step. The first manipulator drives the sheet glue to move to the glue tearing jaw, and makes the ears of the sheet glue located within the working range of the glue tearing jaw. After the glue tearing jaw clamps the ears of the sheet glue, the rotating component drives the glue tearing jaw component to rotate, so that the release paper of the lower layer of the sheet glue is separated from the sheet glue;

[0018] A detection step. The first manipulator drives the sheet glue with the lower layer release paper torn off to move to the visual detection mechanism, and the vision detects whether the lower layer sheet glue has been torn off completely.

[0019] Furthermore, the step S2 further includes:

[0020] A recycling step. The rotating component drives the glue tearing jaw and the lower layer release paper to rotate above the release paper recycling mechanism, and the glue tearing jaw releases the lower layer release paper to make it fall into the release paper recycling mechanism for recycling.

[0021] Furthermore, the recycling step further includes:

[0022] A release paper recycling step. The release paper falls into the waste material guiding notch, and is guided by it to fall to the waste material conveying part, and the waste material conveying part conveys the release paper into the recycling bin.

[0023] Furthermore, the detection step further includes:

[0024] A vision detection step. The vision detection mechanism obtains the position information of the first manipulator. When it is confirmed that the first manipulator carries the sheet glue with the lower layer release paper torn off and moves above it, the camera protection device unfolds to perform the detection work. After the detection is completed, the camera protection device rotates to block the vision detection mechanism.

[0025] Furthermore, the step S3 further includes:

[0026] Laminating step: The first manipulator drives the sheet adhesive that has peeled off the lower release paper above the target battery cell along a preset path, adjusts the suction cup assembly to descend and make the sheet adhesive contact the target battery cell, and finally the suction cup assembly releases the negative pressure and presses down to make the sheet adhesive adhere to the target battery cell.

[0027] Further, the step S4 further includes:

[0028] Upper release paper peeling step: The battery cell tooling plate is transferred to the second manipulator along a preset path, and the sheet adhesive ear is located within the working area of the second adhesive tearing jaw assembly. After the adhesive tearing jaw assembly clamps the sheet adhesive ear, the second manipulator moves to drive the upper release paper away from the sheet adhesive to complete the adhesive tearing.

[0029] Release paper collection step: The second manipulator drives the upper release paper to move above the release paper recycling mechanism through the adhesive tearing jaw assembly, and the adhesive tearing jaw is loosened to make the lower release paper fall into the release paper recycling mechanism for recycling.

[0030] Re-inspection step: After the upper release paper is peeled off, the second manipulator moves and uses the visual inspection mechanism provided thereon to detect whether the upper release paper has been completely torn off.

[0031] Further, the number of the first manipulators is at least two groups, and they are distributed on both sides of the battery cell conveying line;

[0032] At least two groups of suction cup fixtures are provided on the first manipulator;

[0033] At least two groups of adhesive tearing jaw assemblies are provided on the second manipulator.

[0034] The beneficial effects of the present invention are reflected in:

[0035] In the present invention, during production, a certain amount can be placed at the stock storage station, and there is no need for manual feeding back and forth, reducing the use of a part of the labor force. After the sheet adhesive inside the material tray assembly reaches a certain amount, the fixture on the four-axis manipulator uses the suction cup to pick up the material. After the picking is completed, it is sent to the adhesive tearing station. After the lower release paper is torn off, the four-axis manipulator drives the torn sheet adhesive for visual inspection to detect whether the lower release paper has been torn off. After the inspection is completed, the four-axis manipulator drives the torn sheet adhesive to be pasted into the battery cell and runs to the subsequent station. The subsequent four-axis manipulator drives the fixture to tear off the upper release paper of the battery cell. The whole set of actions completes the adhesive pasting and adhesive tearing actions of the battery cell, which greatly improves the production efficiency and ensures the accuracy of the adhesive pasting, reducing the manual labor force. Description of the Drawings

[0036] Figure 1 It is a three-dimensional view of the present invention;

[0037] Figure 2 It is a schematic diagram of the stock storage station of the present invention;

[0038] Figure 3 Schematic structural diagram of the loading tray assembly of the present invention;

[0039] Figure 4 Schematic structural diagram of the first manipulator of the present invention;

[0040] Figure 5 Schematic structural diagram of the suction cup fixture of the present invention;

[0041] Figure 6 Bottom view of the suction cup fixture of the present invention;

[0042] Figure 7 Schematic structural diagram of the glue tearing station of the present invention;

[0043] Figure 8 Structural diagram of the recycling part of the present invention;

[0044] Figure 9 Schematic structural diagram of the second manipulator of the present invention;

[0045] Figure 10 Schematic structural diagram of the second glue tearing jaw assembly of the present invention. Detailed implementation manners

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0047] Please refer to Figures 1-10 , the present invention discloses a method for tearing and pasting glue on the large surface of an electric core, including the following steps:

[0048] S1. Place the film adhesive in the stock storage station;

[0049] S2. The first manipulator picks up the film adhesive in the stock storage station and transfers it to the glue tearing station, tears off the lower release paper of the film adhesive in the glue tearing station, and then drives the film adhesive for visual inspection;

[0050] S3. The first manipulator drives the film adhesive after the inspection and pastes it on the surface of the electric core;

[0051] S4. The electric core with the film adhesive is conveyed to the second manipulator along with the tooling plate. The second manipulator tears off the upper release paper of the film adhesive on the electric core and conducts visual inspection to complete the glue pasting.

[0052] It should be noted that both the first manipulator and the second manipulator are four-axis manipulators, which can perform actions such as material picking, transferring, and attaching according to a preset path under the allocation of the control system.

[0053] It should be supplemented that the step S1 further includes:

[0054] Filling step: Manually place a certain number of sheet adhesives into two sets of tray assemblies at the storage station. After the photoelectric detection assembly at the storage station detects that the corresponding side tray assembly is full, it rotates 180° to the manipulator material picking position. The first manipulator picks up the sheet adhesive. In the above steps, as Figure 3 shown, the tray assembly is provided with a placement part for placing the sheet adhesive. At the same time, a brush is provided at the entrance end of the placement part, and the brush can prevent multiple sheets of material from being brought in at one time during material picking;

[0055] Alternative replenishment step: After the photoelectric detection assembly detects that the sheet adhesives in the tray assembly have been picked up, the rotating platform drives the tray assembly to rotate 180°, and the operator replenishes the empty tray.

[0056] In a preferred embodiment, the number of storage stations is four groups, and the four groups of storage stations are distributed on both sides of the battery core conveying line in a pairwise opposite manner. At the same time, the number of corresponding first manipulators is also four groups, which are used to synchronously perform the attaching process on multiple groups of battery cores.

[0057] In this application, the step S2 further includes:

[0058] Positioning and picking step: The first manipulator moves to the target sheet adhesive position through a preset path, and adjusts the suction cup assembly to correspond to the target sheet adhesive through the variable distance assembly. Then, the first manipulator controls the suction cup assembly to descend and make flexible contact with the target sheet adhesive, and finally adsorbs the target sheet adhesive through the negative pressure suction cup in the suction cup assembly.

[0059] In this step, there is a telescopic gap between the suction cup assembly and the variable distance assembly, which can contract during the contact with the target sheet adhesive to prevent overpressure when entering the placement part. Secondly, the variable distance assembly can drive the suction cup assembly to move to adjust the position of the corresponding suction cup assembly. Finally, an optoelectronic protection assembly is also provided on the suction cup fixture, which can stop the equipment to avoid overpressure when the descending distance of the suction cup assembly exceeds the set threshold during debugging or production operation.

[0060] In this application, the step S2 further includes:

[0061] Adjustment step: Manually adjust the position of the glue tearing jaw according to the running track of the first manipulator;

[0062] Lower release paper peeling step: The first manipulator drives the film adhesive to the glue tearing jaw, and positions the film adhesive ear within the working range of the glue tearing jaw. After the glue tearing jaw grips the film adhesive ear, the rotating assembly drives the glue tearing jaw assembly to rotate, separating the release paper on the lower layer of the film adhesive from the film adhesive.

[0063] Detection step: The first manipulator drives the film adhesive with the lower release paper torn off to the visual inspection mechanism, and the vision is used to detect whether the lower layer of the film adhesive has been torn off completely.

[0064] In the above steps, it should be added that the end of the jaw part is processed into a toothed shape to better grip the film adhesive and hold it firmly. At the same time, the entire glue tearing jaw can slide freely on the connecting rod to align with the spacing of the feeding material, facilitating on-site manual debugging. Specifically, the first manipulator drives the film adhesive to move to the glue tearing jaw according to a preset path, and the position of the corresponding glue tearing jaw can be adjusted manually to correspond to the preset path of the first manipulator. Then, the glue tearing jaw grips the film adhesive ear and rotates, driving the release paper on the lower layer of the film adhesive to separate from the film adhesive. In this posture, the release paper on the lower layer gripped by the glue tearing jaw is exactly above the release paper recycling mechanism.

[0065] Specifically, the step S2 further includes:

[0066] Recycling step: The rotating assembly drives the glue tearing jaw and the lower release paper to rotate above the release paper recycling mechanism, and the glue tearing jaw releases the lower release paper, allowing it to fall into the release paper recycling mechanism for recycling.

[0067] As Figure 8 shown, the release paper on the lower layer of the film adhesive falls into the conveying power line of the waste material conveying part through the waste material guiding slot, and is conveyed to the release paper recycling bin by the power line. The entire operation process facilitates manual management of the waste material and also ensures the 5S organization on-site. Further, the recycling step further includes:

[0068] Release paper recycling step: The release paper falls into the waste material guiding slot, and is guided by it to fall to the waste material conveying part. The waste material conveying part conveys the release paper into the recycling bin.

[0069] It should be added that the detection step further includes:

[0070] Visual inspection step: The visual inspection mechanism obtains the position information of the first manipulator. When it is confirmed that the first manipulator carries the film adhesive with the lower release paper torn off and transfers it above the visual inspection mechanism, the camera protection device unfolds to perform the inspection work. After the inspection is completed, the camera protection device rotates to block the visual inspection mechanism.

[0071] The four-axis manipulator drives the sheet adhesive that has torn off the lower release paper to move to the visual inspection mechanism, and the vision is used to detect whether the lower sheet adhesive has been torn off completely. The visual inspection mechanism is equipped with a camera protection device. When not working, the rotary cylinder rotates to block the cylinder with a shielding piece to protect the lens and extend its service life. The bar-shaped light source has a large radiation space and saves installation space.

[0072] In this application, step S3 further includes:

[0073] Laminating step: The first manipulator drives the sheet adhesive that has torn off the lower release paper above the target battery cell through a preset path, adjusts the suction cup assembly to descend and make the sheet adhesive contact the target battery cell, and finally the suction cup assembly releases the negative pressure and presses down to make the sheet adhesive adhere to the target battery cell.

[0074] In the above, there is a telescopic gap between the suction cup assembly and the variable pitch assembly. During the contact with the target sheet adhesive, it can press down and provide a certain downward pressure to ensure that the sheet adhesive adheres tightly to the target battery cell.

[0075] After the sheet adhesive adheres to the target battery cell, the battery cell tooling board is transferred to the second manipulator according to a preset path, and the sheet adhesive ear is located within the working range of the second glue tearing jaw assembly. After the glue tearing jaw assembly clamps the sheet adhesive ear, the second manipulator moves to drive the upper release paper to separate from the sheet adhesive, completing the glue tearing;

[0076] Release paper collection step: The second manipulator drives the upper release paper to move above the release paper recycling mechanism through the glue tearing jaw assembly, and the glue tearing jaw loosens to make the lower release paper fall into the release paper recycling mechanism for recycling;

[0077] Re-inspection step: After the upper release paper is peeled off, the second manipulator moves and uses the visual inspection mechanism set on it to detect whether the upper release paper has been torn off completely.

[0078] Furthermore, it should be added that the number of the first manipulators is at least two groups and they are distributed on both sides of the battery cell conveyor line;

[0079] At least two groups of suction cup fixtures are arranged on the first manipulator;

[0080] At least two groups of glue tearing jaw assemblies are arranged on the second manipulator.

[0081] In the above steps, the second manipulator drives the glue tearing jaw assembly to move to the position where the upper sheet adhesive of the battery cell is torn off. It can tear off multiple sheets at one time to improve the cycle efficiency. The glue tearing jaw clamps the ear of the battery cell. After the clamping is completed, the four-axis manipulator moves along the corresponding trajectory to throw the waste into the upper release paper recycling mechanism. There is a plasma hair dryer at the release paper recycling mechanism to prevent the release paper from falling into the edge and not falling into the release paper recycling mechanism. The visual inspection component is used to detect whether the upper release paper has been torn off completely.

[0082] In this method, during production, a certain amount of materials can be placed at the material storage station, eliminating the need for manual back-and-forth material feeding and reducing the use of some labor. After a certain amount of sheet glue accumulates inside the material tray assembly, the clamp on the four-axis robotic arm picks up the material using a suction cup. After the picking is completed, it is sent to the glue peeling station. After the lower release paper is peeled off, the four-axis robotic arm drives the peeled sheet glue for visual inspection to check whether the lower release paper has been completely peeled off. After the inspection is completed, the four-axis robotic arm drives the peeled sheet glue to be pasted into the battery cell and runs to the subsequent stations. Then, the four-axis robotic arm drives the clamp to peel off the upper release paper of the battery cell. This entire set of actions completes the glue pasting and glue peeling operations for the battery cell, greatly improving the production efficiency and ensuring the accuracy of glue pasting, while reducing the manual labor force.

[0083] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, these directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If this specific posture changes, the directional indications will also change accordingly.

[0084] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, these "first", "second", etc. descriptions are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. Additionally, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0085] In addition, "a plurality of" means two or more.

[0086] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for tearing and pasting glue on the large surface of an electrode core, characterized in that, It includes the following steps: S1. Place the film adhesive in the stock position; S2. The first manipulator picks up the film adhesive in the stock position and transfers it to the glue tearing position. At the glue tearing position, the lower release paper of the film adhesive is torn off, and then the manipulator drives the film adhesive for visual inspection; S3. The first manipulator drives the film adhesive after the inspection is completed and attaches it to the surface of the battery cell; S4. The battery cell with the film adhesive attached is conveyed to the second manipulator along with the tooling plate. The second manipulator tears off the upper release paper of the film adhesive on the battery cell and conducts visual inspection to complete the glue sticking.

2. The method for tearing and pasting glue on the large surface of an electrode core according to claim 1, wherein The step S1 further includes: Filling step. Manually place a certain number of film adhesives into two sets of tray assemblies in the stock position. After the photoelectric detection component in the stock position detects that the corresponding side tray assembly is full, it rotates 180° to the manipulator picking position, and the first manipulator picks up the film adhesive; Alternative feeding step. After the photoelectric detection component detects that the film adhesives in the tray assembly are picked up, the rotating platform drives the tray assembly to rotate 180°, and the operator replenishes the empty tray.

3. The method for tearing and pasting glue on the large surface of an electric core according to claim 1, wherein The step S2 further includes: Positioning and picking step. The first manipulator moves to the target film adhesive position through a preset path, adjusts the suction cup fixture to correspond to the target film adhesive through the variable pitch component, then the first manipulator controls the suction cup assembly to descend and make flexible contact with the target film adhesive, and finally adsorbs the target film adhesive through the negative pressure suction cup in the suction cup assembly.

4. The method for tearing and pasting glue on the large surface of an electrode core according to claim 1, wherein, The step S2 further includes: Adjustment step. Manually adjust the position of the glue tearing jaw according to the running track of the first manipulator; Lower release paper peeling step. The first manipulator drives the film adhesive to the glue tearing jaw and makes the film adhesive ear located within the working range of the glue tearing jaw. After the glue tearing jaw clamps the film adhesive ear, the rotating component drives the glue tearing jaw assembly to rotate, so that the lower release paper of the film adhesive is separated from the film adhesive; Detection step. The first manipulator drives the film adhesive with the lower release paper torn off to the visual inspection mechanism, and the vision is used to detect whether the lower film adhesive is torn off completely.

5. The method for tearing and pasting glue on the large surface of an electric core according to claim 4, wherein, The step S2 further includes: Recycling step. The rotating component drives the glue tearing jaw and the lower release paper to rotate above the release paper recycling mechanism, and the glue tearing jaw releases the lower release paper so that it falls into the release paper recycling mechanism for recycling.

6. The method for tearing and pasting glue on the large surface of an electrode core according to claim 5, wherein, The recycling step further includes: Release paper recycling step. The release paper falls into the waste guiding slot opening, and is guided by it to the waste conveying part, and the waste conveying part conveys the release paper into the recycling bin.

7. The method for tearing and pasting glue on the large surface of an electric core according to claim 4, wherein, The detection step further includes: Visual inspection step. The visual inspection mechanism obtains the position information of the first manipulator. When it is confirmed that the first manipulator carries the film adhesive with the lower release paper torn off and transfers it above it, the camera protection device unfolds for inspection work. After the inspection is completed, the camera protection device rotates to block the visual inspection mechanism.

8. The method for tearing and pasting glue on the large surface of an electric core according to claim 1, wherein, The step S3 further includes: Laminating step. The first manipulator drives the film adhesive with the lower release paper torn off to transfer above the target battery cell through a preset path, adjusts the suction cup assembly to descend and makes the film adhesive contact with the target battery cell, and finally the suction cup assembly releases the negative pressure and presses down, so that the film adhesive adheres to the target battery cell.

9. The method for tearing and pasting glue on the large surface of an electric core according to claim 1, wherein, The step S4 further includes: Upper release paper peeling step: The cell tooling plate is transferred to the second manipulator according to a preset path, and the tab ear is positioned within the working area of the second adhesive tearing jaw assembly. After the adhesive tearing jaw assembly grips the tab ear, the second manipulator moves to drive the upper release paper away from the tab ear, completing the adhesive tearing. Release paper collection step: The second manipulator drives the upper release paper to move above the release paper recycling mechanism through the adhesive tearing jaw assembly, and the adhesive tearing jaws are released to allow the lower release paper to fall into the release paper recycling mechanism for recycling. Re-inspection step: After the peeling of the upper release paper is completed, the second manipulator moves and uses the vision inspection mechanism provided thereon to detect whether the upper release paper has been completely torn off.

10. A method for tearing and pasting glue on the large surface of an electrode core according to any one of claims 1-9, characterized in that, The number of the first manipulators is at least two groups, and they are distributed on both sides of the cell conveyor line. At least two groups of suction cup fixtures are provided on the first manipulator. At least two groups of adhesive tearing jaw assemblies are provided on the second manipulator.

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