Lithium battery pole piece pressing mechanism

By designing the adhesive pressing mechanism of the lithium battery electrode sheet, and using the compression drive device and heating components to realize the automatic adhesion of the battery tape, the problem of low manual adhesive efficiency in the prior art is solved, and the production efficiency and accuracy are improved.

CN111564599BActive Publication Date: 2025-08-12GUANGZHOU SUPERSONIC AUTOMATION TECH CO LTD
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Patent Information

Application Number
CN202010364523.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-04-30
Publication Date
2025-08-12
Estimated Expiration
2040-04-30

AI Technical Summary

Technical Problem

The existing lithium battery electrode patch glue process relies on manual operation, resulting in high labor intensity and low production efficiency.

Method used

A glue pressing mechanism for lithium battery electrode sheets is designed, and the hot melt adhesive on the battery tape is attached to the surface of the electrode sheet using a compression drive device and a heating assembly. The tape position is adjusted through the glue correction device to improve the adhesive accuracy and speed.

Benefits of technology

The automatic glue patching of lithium battery electrodes has been realized, which improves production efficiency and glue patching accuracy, and reduces the intensity of manual labor.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a glue pressing mechanism for lithium battery pole pieces, which comprises two pressing drive devices and two glue pressing components; the two glue pressing components are arranged opposite to each other, and the two pressing drive devices are respectively used to drive the two glue pressing components; the glue pressing component comprises a mounting frame, a roller and a heating component, the mounting frame is connected to the pressing drive device, the roller is arranged on the mounting frame, and the heating component is installed in the roller, and the heat generated by the roller can heat the outer wall of the roller through heat conduction; the battery tape and the lithium battery pole piece are relatively parallel and incorporated into the gap between the two glue pressing components, and the pressing drive device drives the glue pressing components to move closer to each other, so that the surfaces of the battery tape and the lithium battery pole piece can be attached to the roller, and the surface of the battery tape with hot melt adhesive can contact the surface of the lithium battery pole piece; the hot melt adhesive of the battery tape is separated from the battery tape when heated, and the lithium battery pole piece and the battery tape are pulled at the same time, so that the hot melt adhesive on the battery tape is attached to the lithium battery pole piece.
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Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery pole piece production, and in particular to a glue pressing mechanism for lithium battery pole pieces. Background Art

[0002] With the development of various electronic products, the demand for lithium batteries has shown a rapid growth trend, and their application is becoming more and more extensive. Among them, the battery cell of a lithium battery is composed of two electrode sheets (positive and negative) and a separator. During the manufacturing process of lithium battery cells, the gluing process of the electrode sheets is one of the most important factors in the overall cell manufacturing efficiency. However, in the existing technology, people often do this manually, which is not only labor-intensive but also has low production efficiency. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a gluing mechanism for lithium battery pole pieces, which can realize the gluing of lithium battery pole pieces, improve the speed and accuracy of gluing, and thus improve production efficiency.

[0004] The purpose of the present invention is achieved by adopting the following technical solutions:

[0005] A gluing mechanism for a lithium battery pole piece, used to adhere the hot melt adhesive of a battery tape to the surface of a lithium battery pole piece, the gluing mechanism comprising a supporting frame, a gluing device, and a gluing correction device, wherein the supporting frame is used to mount the gluing device and the gluing correction device;

[0006] The glue pressing device includes a first base, a first support plate, a first pressing drive device and a first glue pressing assembly.

[0007] A first base, fixed on the supporting base frame;

[0008] A first support plate, provided on the first base;

[0009] A first pressing drive device, provided on the first supporting plate, for driving the first glue pressing assembly;

[0010] a first glue pressing assembly, connected to the first pressing drive device and arranged perpendicularly to the first base;

[0011] The first glue pressing assembly includes a first mounting frame, a first roller and a first heating assembly,

[0012] The first mounting frame is connected to the first pressing drive device, the first roller is arranged on the first mounting frame, the first heating assembly is installed in the first roller, and the heat generated by the first heating assembly can heat the outer wall of the first roller through heat conduction;

[0013] The glue pressing and correcting device includes a second base, a second support plate, a second pressing drive device, a second glue pressing assembly and a correcting sliding device.

[0014] a deviation-correcting sliding device connected to the second base and used for correcting the movement of the second base;

[0015] a second base, the second base being arranged opposite to the first base;

[0016] a second support plate, disposed on the second base and opposite to the first support plate;

[0017] A second pressing drive device, provided on the second supporting plate, for driving the second glue pressing assembly;

[0018] a second adhesive pressing component, the second adhesive pressing component being arranged opposite to the first adhesive pressing component;

[0019] The second glue pressing assembly includes a second mounting frame, a second roller and a second heating assembly,

[0020] The second mounting frame is connected to the second pressing drive device, the second roller is arranged on the second mounting frame, and the second heating assembly is installed in the second roller. The heat generated by the second heating assembly can heat the outer wall of the second roller through heat conduction;

[0021] The battery tape and the lithium battery electrode are relatively parallel and incorporated into the gap between the first roller and the second roller. The first pressing drive device drives the first mounting frame and the second pressing drive device drives the second mounting frame, so that the first roller and the second roller can move closer to each other, one surface of the lithium battery electrode can be attached to the first roller, and the surface of the battery tape without hot melt adhesive is attached to the second roller, and the surface of the battery tape with hot melt adhesive can contact the other surface of the lithium battery electrode;

[0022] When the position of the hot melt adhesive on the battery tape is not aligned with the position where the adhesive needs to be applied to the lithium battery electrode, the second base can be moved by means of a correction sliding device to correct the position of the hot melt adhesive on the battery tape and align it with the position where the adhesive needs to be applied to the electrode;

[0023] With the help of the first heating component and the second heating component, the outer wall of the first roller heats the surface of the lithium battery pole piece, and the outer wall of the second roller heats the surface of the battery tape where the hot melt adhesive is not attached. The hot melt adhesive on the battery tape is heated and separated from the battery tape, and at the same time, the lithium battery pole piece and the battery tape are pulled so that the hot melt adhesive on the battery tape is attached to the lithium battery pole piece.

[0024] Furthermore, the glue pressing mechanism also has a control system, and the first heating component and the second heating component are controlled by the control system to adjust the temperature of the first heating component and the second heating component.

[0025] Furthermore, the first glue pressing component has the same structure as the second glue pressing component, and the first heating component includes an electric heating rod and a thermocouple temperature sensor. The electric heating rod is installed in the first roller, and the heat generated by the electric heating rod can heat the outer wall of the first roller through heat conduction. The thermocouple temperature sensor is used to sense the temperature of the electric heating rod and can feedback the detected temperature information of the electric heating rod to the control system.

[0026] Furthermore, a first rotating shaft is provided at the upper end of the first roller, the first rotating shaft is coaxially arranged with the first roller, and an upper bearing cooperating with the first rotating shaft is provided at the upper end of the first mounting frame; a second rotating shaft is provided at the lower end of the first roller, the second rotating shaft is coaxially arranged with the first roller, and a lower bearing cooperating with the second rotating shaft is provided at the lower end of the first mounting frame.

[0027] Furthermore, the first heating component further includes a through-hole slip ring, which is installed on the second rotating shaft and located between the bottom of the first roller and the bottom of the first mounting frame.

[0028] Furthermore, a guiding device is provided on the first supporting plate, which is used to guide the first pressing assembly when the first pressing driving device drives the first pressing assembly to move closer to the second pressing assembly.

[0029] Furthermore, the first support plate is provided with reinforcing ribs for strengthening the connection between the first support plate and the first base.

[0030] Furthermore, the first pressing drive device is a cylinder.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The present invention arranges the first pressing component and the second pressing component relative to each other, and the battery tape and the lithium battery pole piece are relatively parallel and incorporated into the gap between the two pressing components. The pressing components are driven by a compression driving device to move the pressing components closer to each other, and the surface of the battery tape without hot melt adhesive and one surface of the lithium battery pole piece can be fitted with the roller of the pressing component, and the surface of the battery tape with hot melt adhesive is in contact with the other surface of the lithium battery pole piece; the heating component in the roller heats the outer wall of the roller by heat conduction to heat the battery tape and the lithium battery pole piece, and the hot melt adhesive on the battery tape is separated from the battery tape by heat, and the lithium battery pole piece and the battery tape are pulled at the same time, so that the hot melt adhesive on the battery tape can be attached to the lithium battery pole piece, thereby improving the speed and accuracy of adhesive application, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the present invention;

[0034] Figure 2 It is a right side view of the present invention;

[0035] Figure 3 It is a structural schematic diagram of another angle of the present invention;

[0036] Figure 4 Schematic diagram of the structure of the first glue pressing component and the second glue pressing component in a specific embodiment of the present invention;

[0037] Figure 5 Schematic diagram of the structure of the first glue pressing assembly and the first pressing drive device in a specific embodiment of the present invention;

[0038] Figure 6 This is a schematic diagram of the exploded structure of the first roller and the first heating assembly in a specific embodiment of the present invention;

[0039] Figure 7 This is a schematic structural diagram of a first installation frame in a specific embodiment of the present invention;

[0040] Figure 8 This is a schematic structural diagram of the first installation frame from another angle in a specific embodiment of the present invention.

[0041] In the figure: 1, supporting chassis; 2, glue pressing and correcting device; 20, second base; 21, second support plate; 22, second pressing drive device; 23, second glue pressing assembly; 230, second mounting frame; 231, second roller; 24, correcting sliding device; 240, fixed connecting plate; 241, connecting reinforcement plate; 242, guide rail; 243, slider; 3, glue pressing device; 30, first base; 31, first support plate; 310, Reinforcing ribs; 32. First pressing drive device; 33. First glue pressing assembly; 330. First mounting frame; 3300. Connecting portion; 3301. Mounting portion; 331. First roller; 3310. First rotating shaft; 3311. Second rotating shaft; 332. First heating assembly; 3320. Electric heating rod; 3321. Thermocouple temperature sensor; 3322. Through-hole slip ring; 4. Guide device; 5. Lithium battery pole piece; 6. Battery tape. DETAILED DESCRIPTION

[0042] Below, the present invention is described in priority with reference to the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0043] In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "back," "left," "right," "horizontal," "vertical," "top," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0045] Implementation method:

[0046] like Figure 1-8As shown, the present invention shows a gluing mechanism for a lithium battery pole piece, which is used to attach the hot melt adhesive of the battery tape 6 to the surface of the lithium battery pole piece 5. The gluing mechanism has a supporting base 1, a gluing device 3 and a gluing correction device 2. The supporting base 1 is used to install the gluing device 3 and the gluing correction device 2.

[0047] Specifically, the adhesive laminating device 3 includes a first base 30, a first support plate 31, a first pressing drive device 32, and a first adhesive laminating assembly 33. The first base 30 is fixed to the support base 1, the first support plate 31 is mounted on the first base 30, and the first pressing drive device 32 is mounted on the first support plate 31 for driving the first adhesive laminating assembly 33. The first pressing drive device 32 is preferably a cylinder. The first adhesive laminating assembly 33 is connected to the first pressing drive device 32 and is arranged perpendicular to the first base 30. That is, the first adhesive laminating assembly 33 is connected to the movable end of the cylinder so as to be driven by the cylinder to move the first adhesive laminating assembly 33. More specifically, the first adhesive laminating assembly 33 includes a first mounting frame 330, a first roller 331, and a first heating assembly 332. The first mounting frame 330 is connected to the first pressing drive device 32, that is, the first mounting frame 330 is connected to the movable end of the cylinder. The first roller 331 is mounted on the first mounting frame 330. Of course, the outer wall of the first roller 331 protrudes from the first mounting frame 330. The first mounting frame 330 has a mounting portion 3301 and a connecting portion 3300. The connecting portion 3300 is used to connect to the first pressing drive device 32, that is, the movable end of the cylinder is connected to the connecting portion 3300 of the first mounting frame 330. The mounting portion 3301 is used to mount the first roller 331. The first heating assembly 332 is installed inside the first roller 331, so that the heat generated by the first heating assembly 332 can heat the outer wall of the first roller 331 through heat conduction.

[0048] Specifically, the glue lamination correction device 2 includes a second base 20, a second support plate 21, a second pressing drive 22, a second glue lamination assembly 23, and a correction slide. The correction slide is connected to the second base 20 and is used to correct the movement of the second base 20. The second base 20 is disposed opposite the first base 30, and the second support plate 21 is disposed on the second base 20 and opposite the first support plate 31. The second pressing drive 22 is disposed on the second support plate 21 and is used to drive the second glue lamination assembly 23. The second adhesive laminating assembly 23 is disposed opposite the first adhesive laminating assembly 33. The second adhesive laminating assembly 23 includes a second mounting frame 230, a second roller 231, and a second heating assembly. The second mounting frame 230 is connected to the second pressing drive 22, which also utilizes a cylinder, i.e., the movable end of the cylinder is connected to the second mounting frame 230. The second roller 231 is disposed on the second mounting frame 230. Of course, the outer wall of the second roller 231 protrudes from the second mounting frame 230, and the second mounting frame 230 has the same structure as the first mounting frame 330. The second heating assembly is mounted within the second roller 231, so that the heat generated by the second heating assembly can heat the outer wall of the second roller 231 through heat conduction.

[0049] On the basis of the above structure, the battery tape 6 and the lithium battery pole piece 5 are relatively parallel and incorporated into the gap between the first roller 331 and the second roller 231. The first pressing drive device 32 drives the first mounting frame 330 and the second pressing drive device 22 drives the second mounting frame 230, so that the first roller 331 and the second roller 231 can move closer to each other, and one surface of the lithium battery pole piece 5 can be attached to the first roller 331, and the surface of the battery tape 6 without hot melt adhesive is attached to the second roller 231, and the surface of the battery tape 6 with hot melt adhesive can contact the other surface of the lithium battery pole piece 5; when the position of the hot melt adhesive on the battery tape 6 When the position is not aligned with the position where the glue needs to be applied on the lithium battery pole piece 5, the second base 20 can be corrected and moved with the help of a correction sliding device to correct the position of the hot melt glue on the battery tape 6 and align it with the position of the pole piece glue; with the help of the first heating component 332 and the second heating component, the outer wall of the first roller 331 heats the surface of the lithium battery pole piece 5, and the outer wall of the second roller 231 heats the surface of the battery tape 6 where the hot melt glue is not attached. The hot melt glue on the battery tape 6 is heated and separated from the battery tape 6, and the lithium battery pole piece 5 and the battery tape 6 are pulled at the same time, so that the hot melt glue on the battery tape 6 is attached to the lithium battery pole piece 5, thereby improving the speed and accuracy of the glue application, thereby improving production efficiency. Of course, the glue pressing mechanism of the lithium battery pole piece 5 also has a control system, and the first heating component 332 and the second heating component are controlled by the control system to adjust the temperature of the first heating component 332 and the second heating component.

[0050] Of course, the glue pressing mechanism of the present invention also has a control system, and the first heating component 332 and the second heating component are controlled by the control system to adjust the temperature of the first heating component 332 and the second heating component. In addition, the first glue pressing component 33 and the second glue pressing component 23 have the same structure, such as Figure 5-6As shown, the first heating component 332 includes an electric heating rod 3320 and a thermocouple temperature sensor 3321. The electric heating rod 3320 is installed in the first roller 331. The heat generated by the electric heating rod 3320 can heat the outer wall of the first roller 331 through heat conduction. The thermocouple temperature sensor 3321 is used to sense the temperature of the electric heating rod 3320 and can feed back the detected temperature information of the electric heating rod 3320 to the control system. When the thermocouple temperature sensor 3321 senses that the temperature of the electric heating rod 3320 in the first roller 331 is higher than the set temperature, the thermocouple temperature sensor 3321 feeds back the detected temperature to the control system, which then shuts down the electric heating rod 3320. Since the electric heating rod 3320 is not in operation, its temperature will gradually drop. When the thermocouple temperature sensor 3321 senses that the temperature of the electric heating rod 3320 in the first roller 331 is lower than the set temperature, the thermocouple temperature sensor 3321 feeds back the detected temperature to the control system, which then starts the electric heating rod 3320 in operation. This cycle is repeated to control the temperature of the electric heating rod 3320 in the first roller 331 to operate within the set range, so that the outer wall temperature of the first roller 331 reaches the optimal operating state, facilitating the hot melt adhesive on the battery tape 6 to be attached to the lithium battery electrode 5. It should be noted that the operating temperature range of the electric heating rod 3320 in the roller is set to 115-125°C, with the preferred temperature setting being 120°C. Since the first glue pressing assembly 33 has the same structure as the second glue pressing assembly 23, it can be understood that the operating temperature range of the electric heating rod 3320 set in the second roller 231 is also the same as the operating temperature range of the electric heating rod 3320 set in the first roller 331, so that the outer wall temperature of the second roller 231 reaches the optimal working state.

[0051] In a preferred embodiment, if Figure 3As shown, the correction sliding device 24 includes a correction driving device (not shown), a connecting reinforcement plate 241, a fixed connecting plate 240, a guide rail 242 and a slider 243. The fixed connecting plate 240 is fixed to the support base and is located on the side opposite to the second glue pressing component 23. The guide rail 242 is arranged on the fixed connecting plate 240 along the length direction of the fixed connecting plate 240. The slider 243 is adapted to the guide rail 242 and slides on the guide rail 242. The connecting reinforcement plate 241 is connected to the second glue pressing component 23. The second base 20 is connected to the slider 243, and the connecting reinforcement plate 241 is located on the side opposite to the second glue pressing component 23. The connecting reinforcement plate 241 is driven by a correction driving device (not shown) to move along the guide rail 242, thereby realizing the correction movement of the second base 20. When the position of the hot melt adhesive on the battery tape 6 is not aligned with the position where the adhesive needs to be applied on the lithium battery electrode 5, the second base 20 can be corrected and moved with the help of the correction sliding device to align the position of the hot melt adhesive on the battery tape 6 with the position of the electrode adhesive.

[0052] In a preferred embodiment, a first rotating shaft 3310 is provided at the upper end of the first roller 331, and the first rotating shaft 3310 is coaxially arranged with the first roller 331, and an upper bearing cooperating with the first rotating shaft 3310 is provided at the upper end of the first mounting frame 330, that is, an upper bearing is provided on the mounting portion 3301 at the upper end of the first mounting frame 330 to cooperate with the first rotating shaft 3310 set at the upper end of the first roller 331 to achieve connection; a second rotating shaft 3311 is provided at the lower end of the first roller 331, and the second rotating shaft 3311 is coaxially arranged with the first roller 331, and a lower bearing cooperating with the second rotating shaft 3311 is provided at the lower end of the first mounting frame 330, that is, a lower bearing is provided on the mounting portion 3301 at the lower end of the first mounting frame 330 to cooperate with the second rotating shaft 3311 set at the lower end of the roller to achieve connection.

[0053] In a preferred embodiment, the first heating assembly 332 further includes a through-hole slip ring 3322, which is mounted on the second rotating shaft 3311 and located between the bottom of the first roller 331 and the bottom of the first mounting frame 330. During the pulling of the lithium battery electrode 5 and the battery tape 6, the first roller 331 and the second roller 231 passively rotate. The lithium battery electrode 5 drives the first roller 331, and the battery tape 6 drives the second roller 231. The heating rod 3320 and the thermocouple temperature sensor 3321 are both mounted inside each roller. As the rollers rotate, the wires of the heating rod 3320 and the thermocouple temperature sensor 3321 may become entangled. Therefore, a through-hole slip ring 3322 is mounted on the second rotating shaft 3311 to prevent wire entanglement. The through-hole slip ring 3322 is a general term for a series of conductive slip rings with a central hole. They are electrical components responsible for connecting rotating bodies and transmitting energy and signals. Based on the transmission medium, slip rings are categorized as electrical slip rings, fluid slip rings, and smooth slip rings. They are also commonly referred to as "rotational connections" or "rotary connections." Slip rings are typically installed at the rotating center of a device and consist of two main components: a rotating portion, connected to the device's rotating structure and rotating with it, and is called the "rotor." The stationary portion, connected to the device's fixed structure, is called the "stator." It can be understood that the through-hole slip ring 3322 is mounted on the second rotating shaft 3311. Its inner ring rotates with the second rotating shaft 3311, while its outer ring is fixed to the first mounting frame 330. The wires for the electric heating rod 3320 and thermocouple temperature sensor 3321 pass through the bottom of the first roller 331 and connect to the input wires of the through-hole slip ring 3322, preventing wire entanglement.

[0054] In a preferred embodiment, a guide device 4 is further provided on the first support plate 31, which is used to guide the first glue pressing component 33 when the first pressing drive device 32 drives the first glue pressing component 33 to move closer to the second glue pressing component 23. That is, when the cylinder drives the first glue pressing component 33 to move closer to the second glue pressing component 23, the guide device 4 can guide it. Of course, the guide device 4 can use a telescopic rod in the existing technology to achieve a guiding role of the cylinder in the direction of driving the first glue pressing component 33 to move, so that the cylinder drives the first glue pressing component 33 to move more stably. Similarly, the above-mentioned guide device 4 is also provided on the second support plate 21, so that the second pressing drive device 22 (cylinder) drives the second glue pressing component 23 to move more stably.

[0055] In a preferred embodiment, the first support plate 31 is further provided with a reinforcing rib 310 for strengthening the connection between the first support plate 31 and the first base 30. Similarly, the second support plate 21 is also provided with a reinforcing rib 310 for strengthening the connection between the second support plate 21 and the second base 20.

[0056] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A gluing mechanism for a lithium battery pole piece, used to adhere the hot melt adhesive of a battery tape to the surface of a lithium battery pole piece, characterized by: The glue pressing mechanism comprises a supporting chassis, a glue pressing device and a glue pressing deviation correcting device, wherein the supporting chassis is used for installing the glue pressing device and the glue pressing deviation correcting device; The glue pressing device includes a first base, a first support plate, a first pressing drive device and a first glue pressing assembly. A first base, fixed on the supporting base frame; A first support plate, provided on the first base; A first pressing drive device, provided on the first supporting plate, for driving the first glue pressing assembly; a first glue pressing assembly, connected to the first pressing drive device and arranged perpendicularly to the first base; The first glue pressing assembly includes a first mounting frame, a first roller and a first heating assembly, The first mounting frame is connected to the first pressing drive device, the first roller is arranged on the first mounting frame, the first heating assembly is installed in the first roller, and the heat generated by the first heating assembly can heat the outer wall of the first roller through heat conduction; The glue pressing and correcting device includes a second base, a second support plate, a second pressing drive device, a second glue pressing assembly and a correcting sliding device. a deviation-correcting sliding device connected to the second base and used for correcting the movement of the second base; a second base, the second base being arranged opposite to the first base; a second support plate, disposed on the second base and opposite to the first support plate; A second pressing drive device, provided on the second supporting plate, for driving the second glue pressing assembly; a second adhesive pressing component, the second adhesive pressing component being arranged opposite to the first adhesive pressing component; The second glue pressing assembly includes a second mounting frame, a second roller and a second heating assembly, The second mounting frame is connected to the second pressing drive device, the second roller is arranged on the second mounting frame, and the second heating assembly is installed in the second roller. The heat generated by the second heating assembly can heat the outer wall of the second roller through heat conduction; The deflection-correcting sliding device includes a deflection-correcting driving device, a connecting reinforcement plate, a fixed connecting plate, a guide rail, and a slider. The fixed connecting plate is fixed to the supporting base and is located on a side opposite to the second glue-pressing assembly. The guide rail is provided on the fixed connecting plate along a length direction of the fixed connecting plate. The slider is adapted to the guide rail and slides on the guide rail. The connecting reinforcement plate is connected to the second base and connected to the slider. The connecting reinforcement plate is located on a side opposite to the second glue-pressing assembly. The battery tape and the lithium battery electrode are relatively parallel and incorporated into the gap between the first roller and the second roller. The first pressing drive device drives the first mounting frame and the second pressing drive device drives the second mounting frame, so that the first roller and the second roller can move closer to each other, one surface of the lithium battery electrode can be attached to the first roller, and the surface of the battery tape without hot melt adhesive is attached to the second roller, and the surface of the battery tape with hot melt adhesive can contact the other surface of the lithium battery electrode; When the position of the hot melt adhesive on the battery tape is not aligned with the position where the adhesive needs to be applied to the lithium battery electrode, the second base can be moved by means of a correction sliding device to correct the position of the hot melt adhesive on the battery tape and align it with the position where the adhesive needs to be applied to the electrode; With the help of the first heating component and the second heating component, the outer wall of the first roller heats the surface of the lithium battery pole piece, and the outer wall of the second roller heats the surface of the battery tape where the hot melt adhesive is not attached. The hot melt adhesive on the battery tape is heated and separated from the battery tape, and at the same time, the lithium battery pole piece and the battery tape are pulled so that the hot melt adhesive on the battery tape is attached to the lithium battery pole piece.

2. The glue pressing mechanism for lithium battery pole pieces according to claim 1, characterized in that: The glue pressing mechanism also has a control system, and the first heating component and the second heating component are controlled by the control system to adjust the temperature of the first heating component and the second heating component.

3. The glue pressing mechanism for a lithium battery pole piece according to claim 2, characterized in that: The first glue pressing component has the same structure as the second glue pressing component. The first heating component includes an electric heating rod and a thermocouple temperature sensor. The electric heating rod is installed in the first roller. The heat generated by the electric heating rod can heat the outer wall of the first roller through heat conduction. The thermocouple temperature sensor is used to sense the temperature of the electric heating rod and can feedback the detected temperature information of the electric heating rod to the control system.

4. The glue pressing mechanism for a lithium battery electrode according to claim 1, wherein: A first rotating shaft is provided at the upper end of the first roller, the first rotating shaft is coaxially arranged with the first roller, and an upper bearing cooperating with the first rotating shaft is provided at the upper end of the first mounting frame; a second rotating shaft is provided at the lower end of the first roller, the second rotating shaft is coaxially arranged with the first roller, and a lower bearing cooperating with the second rotating shaft is provided at the lower end of the first mounting frame.

5. The glue pressing mechanism for lithium battery pole pieces according to claim 4, characterized in that: The first heating assembly further includes a through-hole slip ring, which is installed on the second rotating shaft and located between the bottom of the first roller and the bottom of the first mounting frame.

6. The glue pressing mechanism for lithium battery pole pieces according to claim 1, characterized in that: The first support plate is further provided with a guide device for guiding when the first pressing drive device drives the first glue pressing assembly to move closer to the second glue pressing assembly.

7. The glue pressing mechanism for a lithium battery pole piece according to claim 1 or 6, characterized in that: The first support plate is further provided with reinforcing ribs for strengthening the connection between the first support plate and the first base.

8. The glue pressing mechanism for lithium battery pole pieces according to claim 1, characterized in that: The first pressing drive device is a cylinder.

Citation Information

Patent Citations

  • Glue pressing mechanism of lithium battery pole piece

    CN212461728U