Adhesive tape pasting module and adhesive tape pasting equipment
By introducing a constant pressure regulating valve and a follower structure into the adhesive application module, the problem of non-adhesive bonding caused by differences in electrode thickness was solved, achieving uniformity and stability in adhesive application and reducing the defect rate and losses in battery production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-03-17
AI Technical Summary
In existing technologies, the thickness difference of the electrode assembly leads to problems such as poor adhesion of the adhesive, resulting in low yield and high loss of battery cells.
The adhesive application module structure adopts a constant pressure regulating valve and a follower component. The constant pressure regulating valve adjusts the pressure of the adhesive application finger, and the follower component drives the adhesive application head assembly to move in the second direction to maintain a constant contact pressure with the electrode assembly.
It achieves uniformity and stability of adhesive application even with differences in electrode thickness, reducing electrode defect rate and loss in battery production.
Smart Images
Figure CN224000741U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery production equipment technology, specifically to an adhesive application module and adhesive application equipment. Background Technology
[0002] Due to the superior space utilization of the stacked structure, batteries are gradually becoming larger and thicker. As the number of stacked layers increases, the size and structure of the cells become more complex. This leads to uneven electrode density and rolling during cell production, which can affect the consistency of the electrode assembly and result in thickness differences in the cell electrode assembly.
[0003] Currently, electrode assembly is a crucial step in lithium-ion battery cell assembly. It primarily uses a servo motor to drive the bonding fingers along a pre-set, fixed trajectory (usually a "C" or "U" shape) and position to complete the bonding. Because the servo motor performs repetitive tasks, the movement trajectory and bonding position of the bonding fingers are consistent. However, in actual production, due to the aforementioned reasons, there are thickness variations in the battery cell electrode assemblies. This leads to the following: when the electrode assembly is thinner than the standard size, unstable bonding or loose tape is likely to occur; when the electrode assembly is thicker than the standard size, the bonding fingers are prone to indentations or damage to the electrode assembly. This, in turn, results in low cell yield and high losses. Utility Model Content
[0004] This invention provides an adhesive application module and an adhesive application device to solve the problem of non-adhesive bonding caused by differences in electrode thickness in the prior art.
[0005] To solve the above-mentioned technical problems, the present invention provides a technical solution in which the adhesive applicator module includes: a mounting base, an adhesive applicator head assembly, and a follower component.
[0006] The mounting base is provided with a constant pressure assembly, wherein the constant pressure assembly includes one or more constant pressure regulating valves and a drive mechanism corresponding to the constant pressure regulating valves; the adhesive applicator assembly is suspended on one side of the mounting base along a first direction and is provided with adhesive applicator fingers for performing adhesive applicator actions.
[0007] One end of the follower abuts against the adhesive applicator assembly, and the other end is provided with a follower bracket connected to the constant pressure assembly. The driving mechanism can drive the follower bracket to move so as to move the adhesive applicator assembly along the second direction.
[0008] The beneficial effects of the technical solution provided by this utility model compared to the prior art are as follows:
[0009] By adding a constant pressure component to the mounting base, a constant pressure regulating valve (a control valve used in industrial systems to maintain a constant fluid pressure) regulates the pressure of the adhesive applicator finger during the adhesive application action. Compared to the current structure where the adhesive applicator finger is fixed to the mounting base, a follower component connects to the adhesive applicator head assembly, allowing the adhesive applicator finger to move in a second direction. This ensures that the adhesive applicator finger moves in the direction of upward or downward force, thus avoiding uneven pressure when the adhesive applicator finger contacts the electrode assembly.
[0010] Specifically, the constant pressure regulating valve can preset the driving pressure of the drive mechanism along the second direction, which is also the preset pressure of the adhesive-applying finger contacting the electrode assembly. When the pressure set by the constant pressure regulating valve is not reached, the drive finger remains fixed, as in the current operation mode. When the pressure set by the constant pressure regulating valve is reached: if the electrode assembly is too thick, fixing the adhesive-applying finger may cause damage or indentation to the electrode assembly. Therefore, the follower is driven by the drive mechanism to allow the adhesive-applying finger to move along the second direction (e.g., upward) to maintain a constant contact pressure with the electrode assembly. If the electrode assembly is too thin, fixing the adhesive-applying finger may result in unstable or loose application. Therefore, the follower is driven by the drive mechanism to allow the adhesive-applying finger to move along the second direction (e.g., downward) to maintain a constant contact pressure with the electrode assembly. Thus, by improving the adhesive application process as described above, with minor modifications to the original mechanical structure, uniform adhesive application can be achieved, the electrode assembly defect rate can be reduced, and battery production losses can be decreased.
[0011] In some embodiments, the follower bracket includes a first bracket, a second bracket, and a connecting shaft, wherein the connecting shaft passes through the second bracket and the first bracket sequentially along the first direction; wherein the first bracket is connected to the driving mechanism, and the second bracket is connected to the follower.
[0012] By adopting the above technical solution, and by setting the first bracket and the second bracket to follow up, the follower can be suspended in the air and can drive the adhesive applicator assembly to move up and down.
[0013] In some embodiments, the adhesive applicator assembly further includes a fixing bracket with a notch along a third direction facing the follower, wherein the follower has a protrusion that engages with the notch. By providing a matching notch on the fixing bracket, the follower can be easily connected to the fixing bracket, and the follower can easily drive the adhesive applicator assembly downwards.
[0014] In some embodiments, the applicator assembly further includes a cutter embedded in the applicator finger for cutting the tape.
[0015] In some embodiments, the adhesive applicator, cutter, and fixing bracket are located on one side of the mounting base along a third direction and protrude from the outer edge of the mounting base. Positioning the adhesive applicator assembly on one side of the mounting base allows the entire adhesive application action to be performed on one side of the mounting base, enabling side-mounted adhesive application. This facilitates rapid positioning of the battery cell by the adhesive applicator and improves adhesive application efficiency.
[0016] In some embodiments, the adhesive applicator further includes a cutting cylinder for driving the cutter to extend or retract the adhesive applicator finger in a third direction, wherein the cutting cylinder is suspended on one side of the mounting base in the first direction.
[0017] By adopting the above technical solution, the cutter is embedded in the adhesive finger and only extends under the drive of the cutting cylinder when the cutting action is required, thereby ensuring the stability of the cutting action and accurate positioning for cutting.
[0018] In some embodiments, the drive end of the cut-off cylinder is provided with a sliding assembly that can slide with the follower. The sliding assembly includes a guide rail located on the follower and a sliding bracket that slides with the guide rail.
[0019] In some implementations, the driving mechanism is one or more driving cylinders, wherein the driving cylinders are connected to the constant pressure regulating valves in a one-to-one correspondence; or the constant pressure regulating valves are connected to multiple driving cylinders respectively.
[0020] Using the above technical solution, the constant pressure component is configured with one or more drive cylinders matched with a constant pressure regulating valve, enabling precise control of the contact pressure with the electrode assembly. The constant pressure regulating valve ensures stable air pressure in the drive cylinders, thereby achieving constant adhesive application accuracy and pressure. When the constant pressure regulating valve is connected to each drive cylinder in a one-to-one correspondence, independent control of the drive cylinders is possible. When the constant pressure regulating valve works with multiple drive cylinders, the consistency of the overall pressure across the multiple drive cylinders is ensured.
[0021] In some embodiments, the fixing base is further provided with a first limiting member, a second limiting member and a third limiting member, the first limiting member and the second limiting member being spaced apart along the second direction, and the third limiting member being located between the first limiting member and the second limiting member along the second direction.
[0022] By adopting the above technical solution, the follower is limited in the second and third directions by setting the first limiting member, the second limiting member and the third limiting member.
[0023] In some embodiments, this application also provides an adhesive application device, including the above-described adhesive application module. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:
[0025] Figure 1 This is a three-dimensional structural diagram of an embodiment of an adhesive application module provided by this utility model. Figure 1 ;
[0026] Figure 2 This is a front view of an embodiment of an adhesive application module provided by this utility model;
[0027] Figure 3 This is a three-dimensional structural diagram of an embodiment of the follower bracket of an adhesive application module provided by this utility model. Figure 1 ;
[0028] Figure 4 This is a three-dimensional structural diagram of an embodiment of the follower bracket of an adhesive application module provided by this utility model. Figure 2 ;
[0029] Figure 5 This is a three-dimensional structural diagram of an embodiment of an adhesive application module provided by this utility model. Figure 2 ;
[0030] Figure 6 This is a three-dimensional structural diagram of an embodiment of a fixing bracket for an adhesive application module provided by this utility model.
[0031] In the picture:
[0032] 10. Mounting base; 11. Constant pressure assembly; 12. Drive mechanism; 13. First limiting component; 14. Second limiting component; 15. Third limiting component; 20. Adhesive applicator assembly; 21. Adhesive applicator finger; 22. Fixing bracket; 220. Notch; 23. Cutter;
[0033] 30. Follower; 31. Follower bracket; 310. First bracket; 311. Second bracket; 312. Rotating shaft; 32. Protrusion; 40. Cut-off cylinder; 41. Sliding assembly; 410. Guide rail; 411. Sliding bracket. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0035] To facilitate the subsequent description, before describing the specific structure of the adhesive module, this application will first combine... Figure 1 A first direction (Y), a second direction (Z), and a third direction (X) are defined. The first direction is the width direction of the adhesive module when it is normally placed, such as the Y direction; the second direction is the height direction of the adhesive module when it is normally placed, such as the Z direction; and the third direction is the length direction of the adhesive module when it is normally placed, such as the X direction. In this application, the first direction (Y), the second direction (Z), and the third direction (X) are perpendicular to each other.
[0036] It is understood that the mutual perpendicularity in this application is not absolute perpendicularity. Approximate perpendicularity due to processing errors and assembly errors (e.g., the included angle between two structural features is 89.9°) is also within the scope of mutual perpendicularity in this application.
[0037] See Figures 1 to 2 As shown, Figure 1 This application provides a three-dimensional structural schematic diagram of an embodiment of an adhesive application module. Figure 1 ; Figure 2 A front view of an embodiment of an adhesive module provided in this application is shown.
[0038] In some embodiments, the adhesive applicator module includes: a mounting base 10, an adhesive applicator head assembly 20, and a follower 30. The mounting base 10 is provided with a constant pressure assembly 11, wherein the constant pressure assembly 11 includes one or more constant pressure regulating valves and a drive mechanism 12 corresponding to the constant pressure regulating valves; the adhesive applicator head assembly 20 is suspended on one side of the mounting base 10 along a first direction and is provided with adhesive applicator fingers 21 for performing the adhesive applicator action.
[0039] One end of the follower 30 abuts against the adhesive applicator assembly 20, and the other end is provided with a follower bracket 31 connected to the constant pressure assembly 11. The drive mechanism 12 can drive the follower bracket 31 to move so as to move the adhesive applicator assembly 20 along the second direction.
[0040] In this embodiment, a constant pressure component 11 is added to the mounting base 10, and a constant pressure regulating valve adjusts the pressure of the adhesive-applying finger 21 during the adhesive-applying action. Exemplarily, the drive mechanism 12 is one or more drive cylinders, wherein each drive cylinder is connected to a constant pressure regulating valve in a one-to-one correspondence; or the constant pressure regulating valve is connected to multiple drive cylinders respectively. For example... Figure 1 The drive mechanism 12 described herein consists of a drive cylinder connected to a constant pressure regulating valve. The constant pressure assembly 11 is configured to match one or more drive cylinders with the constant pressure regulating valve, enabling precise control of the contact pressure with the electrode assembly. The constant pressure regulating valve ensures stable air pressure in the drive cylinders, thereby achieving constant adhesive application accuracy and pressure. When the constant pressure regulating valve is connected to each drive cylinder in a one-to-one correspondence, independent control of the drive cylinders can be achieved. When the constant pressure regulating valve is used in conjunction with multiple drive cylinders, the consistency of the overall pressure of the multiple drive cylinders can be ensured.
[0041] In this embodiment, a follower 30 is used to connect the adhesive applicator assembly 20 so that the adhesive applicator finger 21 can move in the second direction. This allows the adhesive applicator finger 21 to move in the direction of the upward or downward force, thus avoiding uneven pressure when it contacts the electrode assembly. In some embodiments, the constant pressure regulating valve can preset the driving pressure of the drive mechanism 12 in the second direction, that is, preset the pressure at which the adhesive applicator finger 21 contacts the electrode assembly. When the pressure set by the constant pressure regulating valve is not reached, the driving finger remains stationary, operating in the same manner as before. When the pressure set by the constant pressure regulating valve is reached: if the electrode assembly is too thick, fixing the adhesive-applying finger 21 could easily cause damage or indentations to the electrode assembly. Therefore, the follower 30, driven by the drive mechanism 12, allows the adhesive-applying finger 21 to move along the second direction (e.g., upwards) to maintain constant contact pressure with the electrode assembly. If the electrode assembly is too thin, fixing the adhesive-applying finger 21 could easily lead to unstable or loose adhesive application. Therefore, the follower 30, driven by the drive mechanism 12, allows the adhesive-applying finger 21 to move along the second direction (e.g., downwards) to maintain constant contact pressure with the electrode assembly. Thus, by improving the adhesive application method as described above, with minor modifications to the original mechanical structure, uniform adhesive application can be achieved, reducing electrode assembly defect rates and lowering battery production losses.
[0042] In some embodiments, the fixing base is further provided with a first limiting member 13, a second limiting member 14 and a third limiting member 15, the first limiting member 13 and the second limiting member 14 being spaced apart along a second direction, and the third limiting member 15 being located between the first limiting member 13 and the second limiting member 14 along the second direction.
[0043] In this embodiment of the application, a first limiting member 13, a second limiting member 14 and a third limiting member 15 are provided to limit the follower member 30 in the second direction and the third direction.
[0044] See Figures 3 to 4As shown, Figure 3 This paper shows a three-dimensional structural diagram of an embodiment of a follower bracket 31 for an adhesive application module provided in this application. Figure 1 ; Figure 4 This paper shows a three-dimensional structural diagram of an embodiment of a follower bracket 31 for an adhesive application module provided in this application. Figure 2 .
[0045] In some embodiments, the follower bracket 31 includes a first bracket 310, a second bracket 311 and a connecting shaft, with the connecting shaft passing through the second bracket 311 and the first bracket 310 in sequence along a first direction; wherein, the first bracket 310 is connected to the drive mechanism 12 and the second bracket 311 is connected to the follower 30.
[0046] In this embodiment, by setting the first bracket 310 and the second bracket 311 to follow each other, the follower 30 can be suspended in the air and can drive the adhesive applicator assembly 20 to move up and down. For example, combined with... Figure 4 As shown, the first bracket 310 has a groove for mounting the connecting shaft to facilitate adjustment of the mounting position of the connecting shaft.
[0047] For example, when the follower 30 and the follower bracket 31 form a pivot connection structure, the follower 30 swings when it drives the adhesive-applying finger 21 to move. Alternatively, the follower 30 can be replaced by a slider motion mechanism, which drives the slider to move along the second direction via the constant pressure component 11 to move the adhesive-applying finger 21 and create a floating state.
[0048] In some embodiments, the adhesive applicator assembly 20 further includes a fixing bracket 22, which has a recess 220 along a third direction facing the follower 30. The follower 30 has a protrusion 32 that can engage with the recess 220. By providing a recess 220 on the fixing bracket 22 that matches the follower 30, the follower 30 can be connected and engaged with the fixing bracket 22, and the follower 30 can easily drive the adhesive applicator assembly 20 to move downward.
[0049] See Figure 5 As shown, Figure 5 This application provides a three-dimensional structural schematic diagram of an embodiment of an adhesive application module. Figure 2 .
[0050] In some embodiments, the applicator assembly 20 further includes a cutter 23 embedded in the applicator finger 21 for cutting the tape. Exemplarily, the applicator module also includes a cutting cylinder 40 for driving the cutter 23 to extend or retract the applicator finger 21 in a third direction, wherein the cutting cylinder 40 is suspended on one side of the mounting base 10 in the first direction.
[0051] In this embodiment, the cutter 23 is embedded in the adhesive finger 21 and extends only under the drive of the cutting cylinder 40 when a cutting action is required, thereby ensuring the stability of the cutting action and accurate positioning for cutting.
[0052] In some implementations, the adhesive applicator 21, the cutter 23, and the fixing bracket 22 are located on one side of the mounting base 10 along a third direction and protrude from the outer edge of the mounting base 10. Positioning the adhesive applicator assembly 20 on one side of the mounting base 10 allows the entire adhesive applicator action to be performed on one side of the mounting base 10, enabling side adhesive applicator operation. This facilitates rapid positioning of the battery cell by the adhesive applicator 21 and improves adhesive applicator efficiency.
[0053] See Figure 6 As shown, Figure 6 A three-dimensional structural schematic diagram of an embodiment of a fixing bracket 22 for an adhesive module provided in this application is shown.
[0054] In some embodiments, the drive end of the cutting cylinder 40 is provided with a sliding assembly 41 that can slide and engage with the follower 30. The sliding assembly 41 includes a guide rail 410 located on the follower 30 and a sliding bracket 411 that slides and engages with the guide rail 410. In some embodiments, this application also provides an adhesive applicator, including the above-described adhesive applicator module.
[0055] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, should be included within the protection scope of this utility model.
Claims
1. A taping module, characterized in that, The application relates to a rubberizing module. The rubberizing module comprises a mounting base provided with a constant-pressure assembly, wherein the constant-pressure assembly comprises one or more constant-pressure regulating valves and a driving mechanism connected with the constant-pressure regulating valves; a rubberizing head assembly is suspended on one side of the mounting base along a first direction and is provided with rubberizing fingers for performing a rubberizing action; a follower is abutted with the rubberizing head assembly at one end and is provided with a follower bracket connected with the constant-pressure assembly at the other end, wherein the driving mechanism can drive the follower bracket to move to drive the rubberizing head assembly to displace along a second direction.
2. The laminating module according to claim 1, characterized in that, The follower bracket comprises a first bracket, a second bracket and a connecting shaft, the connecting shaft penetrates the second bracket and the first bracket along the first direction in sequence; wherein the first bracket is connected with the driving mechanism and the second bracket is connected with the follower.
3. The laminating module of claim 1, wherein, The rubberizing head assembly further comprises a fixing bracket, the fixing bracket is provided with a notch on one side facing the follower along a third direction, wherein the follower has a protrusion capable of being matched with the notch.
4. The laminating module of claim 1, wherein, The rubberizing head assembly further comprises a cutter, the cutter is embedded in the rubberizing fingers.
5. The laminating module according to any one of claims 3 to 4, characterized in that, The rubberizing fingers, the cutter and the fixing bracket are located on one side of the mounting base along the third direction and protrude from the outer edge of the mounting base.
6. The laminating module of claim 4, wherein, The rubberizing module further comprises a cutting-off air cylinder, the cutting-off air cylinder is used for driving the cutter to extend or retract the rubberizing fingers along the third direction, wherein the cutting-off air cylinder is suspended on one side of the mounting base along the first direction.
7. The laminating module of claim 6, wherein, The driving end of the cutting-off air cylinder is provided with a sliding assembly capable of being slidably matched with the follower, the sliding assembly comprises a guide rail on the follower and a sliding bracket slidably matched with the guide rail.
8. The laminating module of claim 1, wherein, The driving mechanism is one or more driving air cylinders, wherein the driving air cylinders are connected with the constant-pressure regulating valves one by one; or the constant-pressure regulating valves are connected with a plurality of the driving air cylinders respectively.
9. The laminating module of claim 1, wherein, The mounting base is further provided with a first limiting piece, a second limiting piece and a third limiting piece, the first limiting piece and the second limiting piece are arranged at intervals along the second direction, and the third limiting piece is located between the first limiting piece and the second limiting piece along the second direction.
10. A taping apparatus, characterized by The rubberizing module comprises any one of claims 1 to 9.