A kind of lithium battery winding machine rubberizing device

Abstract

The utility model discloses a kind of lithium battery winding machine rubberizing device, including conveying part, down pressure piece, supporting part and feed part;The conveying part is located above supporting part and is slidably installed on supporting part, the down pressure piece is fixedly installed on conveying part, two feed stations are provided on the supporting part, two feed parts are detachably installed at the feed station, double-sided adhesive tape is installed on the feed part;Conveying roller is installed on the conveying part, the positive and negative pole roll material is conveyed by the conveying roller, the conveying part is above different feed stations on supporting part by sliding, to replace double-sided adhesive tape;The utility model is replaced by double feed station design and modularization feed part, when also need not stop longer time, greatly improve production efficiency and continuity.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery manufacturing technology, specifically relating to an adhesive applicator for a lithium battery winding machine. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] In the current lithium battery manufacturing industry, the winding process is one of the key steps in battery production. It involves tightly winding the positive and negative electrode sheets together with the separator to form the basic structure of the battery. During this process, the adhesive application step is crucial for ensuring the stability and sealing of the battery structure. However, existing lithium battery winding machines generally have some problems in the adhesive application stage, which limits further improvements in production efficiency and product quality.

[0004] Traditional adhesive application equipment often relies on mechanical positioning or manual operation to determine the application position. Although existing adhesive application equipment can apply adhesive to positive and negative electrode sheets, it has certain drawbacks. For example, although existing adhesive application equipment can perform the application operation, when the double-sided tape is used up and needs to be replaced, the operator needs to stop the machine for a considerable period of time to replenish the double-sided tape before continuing the operation. In addition, the double-sided tape needs to be recalibrated when installing a new roll, which takes several minutes and seriously affects continuous production. Therefore, the application of adhesive tape is relatively difficult and the application efficiency is low. Utility Model Content

[0005] The purpose of this invention is to provide a lithium battery winding machine adhesive application device. Through the dual-feeding station design and modular feeding components, it is possible to change feeding components without stopping the machine for a long time, which greatly improves production efficiency and continuity.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0007] In a first aspect, embodiments of this utility model provide a lithium battery winding machine adhesive application device, including a conveying component, a pressing component, a supporting component, and a feeding component; the conveying component is located above the supporting component and slidably mounted on the supporting component, the pressing component is fixedly mounted on the conveying component, the supporting component is provided with two feeding stations, two feeding components are detachably mounted at each feeding station, and double-sided adhesive tape is mounted on each feeding component; a conveying roller is mounted on the conveying component, the conveying roller conveys the positive and negative electrode winding materials, and the conveying component slides above different feeding stations on the supporting component to replace the double-sided adhesive tape.

[0008] As a further technical solution, the conveying component includes a base frame, the top of which is open to form a top groove, and a bottom groove is provided at the middle position of the bottom of the base frame. An input part and an output part are installed on both sides symmetrically along the positive and negative coil conveying direction in the top groove, and the input part and the output part are located on both sides of the bottom groove.

[0009] As a further technical solution, the input section is provided with an input roller and a guide roller, and the output section is provided with an output roller and a guide roller, wherein the input roller and the output roller are connected to the output end of the motor.

[0010] As a further technical solution, an L-shaped base frame is provided on each of the front and rear sides of the bottom groove, the openings of the two L-shaped base frames are arranged opposite each other, the L-shaped base frames are slidably connected to the side plates on the support member, and a first electric push rod is fixed at the bottom of each L-shaped base frame.

[0011] As a further technical solution, the pressing component includes a top frame, a pressure plate, and a second electric push rod. The top frame is fixedly connected to the top of the base frame, and the second electric push rod is fixedly connected to the top of the top frame. A pressure plate is provided below the top frame, and the pressure plate is located between the top frame and the base frame. The telescopic end of the second electric push rod passes through the top frame and is fixedly connected to the top of the pressure plate.

[0012] As a further technical solution, the support includes a support plate, with side plates fixedly connected to both sides of the support plate. Two placement slots are symmetrically arranged on the support plate, which serve as material feeding stations. Multiple positioning rods are arranged around the placement slots.

[0013] As a further technical solution, the size of the placement slot is matched with the size of the feeding component.

[0014] As a further technical solution, the feeding component includes a feeding frame, which has an upward-opening U-shaped structure. The feeding frame is equipped with an unwinding roller and a winding roller, and two support rollers are arranged between the unwinding roller and the winding roller.

[0015] As a further technical solution, positioning plates are provided on both sides of the feeding rack, and positioning holes are provided on the positioning plates. The positions of the positioning holes correspond to the positions of the positioning rods on the support plate.

[0016] As a further technical solution, the two idlers are set at a certain distance apart, and the two idlers are at the same height and are both higher than the height of the unwinding roller and the winding roller.

[0017] The beneficial effects of the above-described embodiments of this utility model are as follows:

[0018] The lithium battery winding machine adhesive applicator provided by this utility model significantly improves production efficiency and continuity through its dual-feeding station design and modular quick-release structure. Traditional adhesive applicators require machine shutdown for replacement when the adhesive tape is depleted, which is time-consuming and severely impacts production rhythm. This utility model, however, achieves rapid switching between two sets of feeding devices through a sliding support component, enabling the activation of the backup feeding device within 1-2 seconds, allowing for near-seamless continuous operation. Simultaneously, the dual-station redundancy design reduces the risk of production accidents caused by supply interruptions, ensuring a high execution rate of production plans.

[0019] The lithium battery winding machine adhesive applicator provided by this utility model uses a positioning rod and positioning hole for the feeding component, allowing operators to complete offline replacement without tools, further reducing adhesive replacement time to the second level. Actual tests show that this design can improve the overall equipment efficiency (OEE) by more than 30%, making it particularly suitable for large-scale power battery production scenarios.

[0020] This invention significantly improves the positional accuracy and bonding quality of adhesive application through multi-stage roller group coordinated drive and electric precision pressing technology. The closed-loop conveying system, consisting of input rollers, guide rollers, and output rollers, ensures linear feeding of the positive and negative electrode rolls, while servo motor control reduces conveying errors. The pressing component is driven by an electric push rod, ensuring sufficient contact between the tape and the roll while preventing overpressure damage to the electrode coating. Furthermore, the double idler roller design in the feeding component creates a tape tensioning zone, effectively eliminating tape slack or wrinkles.

[0021] Traditional adhesive applicators typically integrate the feeding unit with the main unit, requiring the disassembly of multiple components to replace the tape, resulting in time-consuming maintenance and a high risk of misoperation. This invention, however, designs the feeding unit as an independent, detachable module, achieving "blind installation" through a standardized positioning interface (positioning rod + positioning hole), allowing even non-professionals to quickly complete replacements. Furthermore, feeding units with double-sided adhesive tape of varying widths can be produced. When producing different battery models, only the feeding rack needs to be replaced, meeting the production needs of multiple battery models and significantly reducing equipment modification costs. Attached Figure Description

[0022] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0023] Figure 1 This is a perspective view of the adhesive application device for a lithium battery winding machine according to the present invention.

[0024] Figure 2 This is one of the perspective views of the present invention with the support and feeding components removed;

[0025] Figure 3 This is a second perspective view of the present invention with the support and feeding components removed;

[0026] Figure 4 for Figure 2 A 3D view of the removed lower pressure component;

[0027] Figure 5 This is a perspective view of the pressing component of this utility model;

[0028] Figure 6 This is one of the perspective views of the connection between the support component and the feeding component of this utility model;

[0029] Figure 7 This is the second perspective view of the connection between the support component and the feeding component of this utility model;

[0030] Figure 8 This is one of the perspective views of the support component of this utility model;

[0031] Figure 9 This is the second perspective view of the support component of this utility model;

[0032] Figure 10 One of the perspective views of the feeder component of this utility model;

[0033] Figure 11 This is a second perspective view of the feeder component of this utility model;

[0034] Figure 12 This is a cross-sectional view of the feeder of this utility model;

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Conveying component; 11. Base frame; 12. Top trough; 13. Bottom trough; 14. Input roller; 15. Output roller; 16. Guide roller; 17. Motor; 18. Base frame; 19. First electric push rod;

[0037] 2. Lower pressing component; 21. Top frame; 22. Second electric push rod; 23. Pressure plate;

[0038] 3. Support component; 31. Support plate; 32. Side plate; 33. Placement slot; 34. Positioning rod;

[0039] 4. Feeding components; 41. Feeding rack; 42. Positioning plate; 43. Positioning hole; 44. Unwinding roller; 45. Rewinding roller; 46. Double-sided tape; 47. Idler roller. Detailed Implementation

[0040] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0041] Example 1

[0042] In a typical embodiment of this utility model, such as Figure 1-12 As shown, a lithium battery winding machine adhesive application device is provided, including a conveying component 1, a pressing component 2, a supporting component 3, and a feeding component 4. The conveying component 1 is located above the supporting component 3 and is slidably mounted on the supporting component 3. The pressing component 2 is fixedly mounted on the conveying component 1. The supporting component 1 is provided with two feeding stations, and two feeding components 4 are detachably mounted at each feeding station. Double-sided adhesive tape 46 is installed on each feeding component 4. A conveying roller is installed on the conveying component 1 to convey the positive and negative electrode winding materials. The conveying component 1 is slidably positioned above different feeding stations on the supporting component to replace the double-sided adhesive tape 46.

[0043] This lithium battery winding machine's adhesive application device, through the cooperation of a sliding conveyor and dual feeding stations, can quickly switch double-sided tapes without interrupting production, significantly reducing downtime. Traditional equipment requires stopping the machine to change tapes, which is time-consuming, while this device can achieve switching in seconds, effectively improving disassembly efficiency. Furthermore, the feeding components are detachable, facilitating offline pre-installation of double-sided tape and reducing online maintenance time. Simultaneously, the dual-station design allows for the pre-positioning of backup feeding components, ensuring production continuity.

[0044] like Figure 2-5 As shown, the conveyor 1 includes a base frame 11, with an open top forming a top groove 12 and a bottom groove 13 located at the center of the bottom of the base frame 11. Input and output sections are symmetrically installed on both sides of the top groove 12 along the positive and negative electrode roll material conveying direction, and are located on both sides of the bottom groove 13. The layered design of the top and bottom grooves separates the positive and negative electrode roll material conveying from the conveyor belt supply path, avoiding interference. The top groove accommodates the roll material conveying roller assembly, while the bottom groove provides operating space for the feeder, resulting in a compact structure. The symmetrical distribution of the input and output sections on both sides of the bottom groove forms a conveying path, ensuring uniform roll material tension and preventing deviation or wrinkling. Furthermore, the open design of the bottom groove allows for quick assembly and disassembly of the feeder from below without disassembling the conveying roller assembly, simplifying the maintenance process.

[0045] Furthermore, the input section is provided with input roller 14 and guide roller 16, and the output section is provided with output roller 15 and guide roller 16. The input roller 14 and output roller 15 are connected to the output end of the motor. Specifically, there are four input rollers, two on each side, with the two input rollers on the same side arranged vertically. The upper input roller is connected to the motor and powered by the motor, with the positive and negative electrode rolls positioned between the upper and lower input rollers. Similarly, there are four output rollers, two on each side, with the two output rollers on the same side arranged vertically. The upper output roller is connected to the motor and powered by the motor, with the positive and negative electrode rolls positioned between the upper and lower output rollers. There are eight guide rollers, four behind the input rollers and four in front of the output rollers, arranged in the same way as the output rollers.

[0046] The aforementioned input roller, guide roller, and output roller form a multi-stage guiding system to ensure that the roll material does not slip or deviate during transport, achieving controllable adhesive application position error. The motor directly links the input and output rollers, avoiding speed deviations caused by traditional belt drives and ensuring matching between the roll material feed and belt unwinding speeds. The guide roller disperses the contact pressure between the roll material and the roller body, extending roller life, and is particularly suitable for high-tensile thin sheet materials. In this embodiment, the input roller, guide roller, output roller, and motor all adopt existing structures.

[0047] like Figure 4 As shown, an L-shaped base frame 18 is provided on each of the front and rear sides of the bottom groove 13. The openings of the two L-shaped base frames 18 are arranged opposite each other. The L-shaped base frames 18 are slidably connected to the side plates 32 on the support member 3. The openings of the L-shaped base frames are designed to form a box-like structure, which has strong anti-torsion ability and avoids deformation caused by load during sliding. A first electric push rod 19 is fixed to the bottom of each L-shaped base frame 18. Specifically, the output end of the first electric push rod is fixedly connected to the bottom surface of the L-shaped base frame, and the other end of the first electric push rod is fixed to the platform. The electric push rod adopts the existing structure and provides support for the conveying component. It can be understood that the first electric push rod can also be set in other positions. The electric push rod adopts the existing structure, and the electric push rod can also be replaced with other hydraulic cylinders or other components.

[0048] like Figure 5As shown, the pressing component 2 includes a top frame 21, a pressure plate 23, and a second electric push rod 22. The top frame 21 is fixedly connected to the top of the base frame 11, and the second electric push rod 22 is fixedly connected to the top of the top frame 21. The pressure plate 23 is provided below the top frame 21 and is located between the top frame 21 and the base frame 11. The telescopic end of the second electric push rod 22 passes through the top frame and is fixedly connected to the top of the pressure plate. The pressure plate is moved up and down by the second electric telescopic rod, so that the positive and negative electrode rolls are tightly bonded to the double-sided adhesive by pressing down the pressure plate during the adhesive application process. The pressure plate can be made of silicone or polyurethane material to ensure the bonding strength while avoiding damage to the surface coating of the roll.

[0049] like Figure 8 and Figure 9 As shown, the support member 3 includes a support plate 31, with side plates 32 fixedly connected to both sides of the support plate 31. Two placement slots 33 are symmetrically arranged on the support plate 31, serving as feeding stations. Multiple positioning rods 34 are arranged around the placement slots 33, positioned symmetrically on both sides of the placement slots 33. Furthermore, the size of the placement slots 33 matches the size of the feeding member 4. During installation, the support plate 31 is installed between two base frames 18, and the side plates 32 are slidably connected inside the base frames 18. The size matching between the placement slots and the feeding member prevents installation wobbling and ensures the straightness of the belt conveyor path.

[0050] like Figure 10-12 As shown, the feeding component 4 includes a feeding frame 41, which has an upward-opening U-shaped structure. The feeding frame 41 is provided with an unwinding roller 44 and a winding roller 45, and two support rollers 47 are provided between the unwinding roller 44 and the winding roller 45.

[0051] Furthermore, positioning plates 42 are provided on both sides of the feeding rack 41, and positioning holes 43 are provided on the positioning plates 42. The positions of the positioning holes 43 correspond to the positions of the positioning rods 34 on the support plate 31. The insertion design of the positioning plates and positioning holes enables "blind installation," allowing operators to complete the replacement without tools, thus improving installation efficiency.

[0052] Furthermore, the two idler rollers 47 are spaced a certain distance apart, and both idler rollers 47 are at the same height and are higher than the unwinding roller 44 and the take-up roller 45. The height difference of the idler rollers forms a tension zone for the tape, preventing loosening or accumulation and ensuring the flatness of the adhesive application. The unwinding roller, take-up roller, and idler rollers used in this embodiment are all existing structures, and the unwinding method of the unwinding roller and the take-up method of the take-up roller are also conventional settings in the art.

[0053] When the device is in use, the feed rack supports the unwinding and rewinding rollers, thereby supporting the double-layer tape. The feed rack with the double-layer tape is then placed inside the placement groove. The positioning rod engages with the positioning hole on the positioning plate on one side of the feed rack. Pushing the support plate causes the side plate to slide in the base frame, thus moving one of the feed racks below the bottom groove. When the double-layer tape on that feed rack is used, the operator can push the support plate to move the other feed rack below the bottom groove, allowing the device to operate normally. The feed racks can also be replaced simultaneously to replace the double-layer tape, allowing the device to operate normally without prolonged downtime, thus improving its efficiency. Furthermore, when the feed rack needs to be replaced, simply pull the feed rack upwards to separate the positioning plate from the positioning rod, allowing the feed rack to be removed and the double-sided tape replaced, further increasing the efficiency of the device in replacing feed racks and double-sided tape.

[0054] When applying adhesive to the positive and negative electrode coils, insert one side of the coil into the input roller, then pass it sequentially through the guide roller and output roller. After feeding the coils, place the two feeders into the slots on the two support plates, ensuring the positioning holes on the feeder plates engage with the positioning rods. This allows the feeders to be mounted on the support plates. Insert the support plates between the two base frames and push them to slide relative to the base frames until one feeder moves below the bottom slot. The motor then drives the input and output rollers, moving the positive and negative electrode coils. When the coils reach the desired adhesive application position, the unwinding and rewinding rollers... The mechanism rotates to unwind the double-sided tape, positioning it below the positive and negative electrode rolls. An electric push rod moves the pressure plate, pressing down on the positive and negative electrode rolls and bringing them closer to the double-sided tape for application. Once the double-sided tape on the feed rack is fully used, the support plate is pushed, causing it to slide and move away from the bottom trough. This allows the unused feed rack to be moved below the bottom trough, enabling continued operation. During operation, personnel can pull the used feed rack upwards to separate the positioning plate from the positioning rod, removing the feed rack from the placement trough. Personnel can then reposition the unused feed rack, ensuring efficient operation.

[0055] The lithium battery winding machine adhesive applicator provided in this embodiment has two feeders detachably connected to a support member. A pressing member is positioned above a conveying member. The conveying member has a first conveying channel for conveying positive and negative electrode rolls along a preset path, and the feeders have a second conveying channel for conveying double-sided adhesive tape along a preset path. The double-sided adhesive tape is positioned below the positive and negative electrode rolls. The pressing member is used to press the positive and negative electrode rolls into contact with the double-sided adhesive tape. When an operator needs to apply adhesive to the positive and negative electrode rolls, the rolls to be adhesiveped are inserted from one end of the conveying member, and the two feeders are connected to the support member. This pushes the support member to slide relative to the conveying member, allowing one of the feeders to... The device moves to the area below the positive and negative electrode rolls, and the water conveyor drives the positive and negative electrode rolls along the first conveying channel, moving them to the upper part of the feeding component. The pressing component then presses the positive and negative electrode rolls onto the double-sided tape, thus applying adhesive to the positive and negative electrode rolls. When double-sided tape needs to be replenished, the support component is pushed to move the feeding component that has finished using the double-sided tape away from the positive and negative electrode rolls, allowing the unused feeding component to move under the positive and negative electrode rolls. The device can then continue applying adhesive, and personnel can remove the feeding component after the double-sided tape has been used. Changing the feeding component does not require a long downtime, improving the device's operating efficiency.

[0056] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lithium battery winding machine taping device, characterized in that, The device includes a conveyor, a pressing component, a support component, and a feeding component. The conveyor is located above the support component and is slidably mounted on the support component. The pressing component is fixedly mounted on the conveyor. The support component has two feeding stations, and two feeding components are detachably mounted at each feeding station. Double-sided adhesive tape is mounted on each feeding component. The conveyor is equipped with a conveying roller, which conveys the positive and negative electrode rolls. The conveyor slides above different feeding stations on the support component to allow for the replacement of the double-sided adhesive tape.

2. The adhesive applicator for a lithium battery winding machine as described in claim 1, characterized in that, The conveying component includes a base frame with an open top forming a top groove and a bottom groove located at the middle of the bottom of the base frame. An input section and an output section are installed symmetrically on both sides of the top groove along the positive and negative coil conveying direction, and the input section and the output section are located on both sides of the bottom groove.

3. The adhesive applicator for a lithium battery winding machine as described in claim 2, characterized in that, The input section is provided with an input roller and a guide roller, and the output section is provided with an output roller and a guide roller. The input roller and the output roller are connected to the output end of the motor.

4. The adhesive applicator for a lithium battery winding machine as described in claim 2, characterized in that, An L-shaped base frame is provided on each of the front and rear sides of the bottom groove. The openings of the two L-shaped base frames are arranged opposite each other. The L-shaped base frames are slidably connected to the side plates on the support members. A first electric push rod is fixed to the bottom of each L-shaped base frame.

5. The adhesive applicator for a lithium battery winding machine as described in claim 1, characterized in that, The pressing component includes a top frame, a pressure plate, and a second electric push rod. The top frame is fixedly connected to the top of the base frame, and the second electric push rod is fixedly connected to the top of the top frame. A pressure plate is provided below the top frame, and the pressure plate is located between the top frame and the base frame. The telescopic end of the second electric push rod passes through the top frame and is fixedly connected to the top of the pressure plate.

6. The adhesive applicator for a lithium battery winding machine as described in claim 1, characterized in that, The support includes a support plate, with side plates fixedly connected to both sides of the support plate. Two placement slots are symmetrically arranged on the support plate, which serve as material feeding stations. Multiple positioning rods are arranged around the placement slots.

7. The adhesive applicator for a lithium battery winding machine as described in claim 6, characterized in that, The size of the placement slot is matched with the size of the feeding component.

8. The adhesive applicator for a lithium battery winding machine as described in claim 1, characterized in that, The feeding component includes a feeding frame, which has an upward-opening U-shaped structure. The feeding frame is equipped with an unwinding roller and a winding roller, and two support rollers are arranged between the unwinding roller and the winding roller.

9. The adhesive applicator for a lithium battery winding machine as described in claim 8, characterized in that, The feeding rack has positioning plates on both sides, and positioning holes are provided on the positioning plates. The positions of the positioning holes correspond to the positions of the positioning rods on the support plate.

10. The adhesive applicator for a lithium battery winding machine as described in claim 8, characterized in that, The two idlers are spaced a certain distance apart, and the two idlers are at the same height and are both higher than the height of the unwinding roller and the winding roller.

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