Rubber coating wheel

By adjusting the distance between the upper and lower wheels of the coating roller, the problem of complex adjustment of the edge groove height in the existing technology is solved, which simplifies the operation, improves efficiency and reduces costs, and ensures that the coating needs of different cell thicknesses can be met.

CN224237308UActive Publication Date: 2026-05-15TONGWEI SOLAR ENERGY (CHENGDU) CO LID
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TONGWEI SOLAR ENERGY (CHENGDU) CO LID
Filing Date
2025-05-27
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In the existing edge binding process, adjusting the height of the edge binding groove requires replacing the entire edge binding wheel, which leads to problems such as complicated operation, long time consumption, low production efficiency and high cost.

Method used

By adjusting the distance between the upper and lower wheels and utilizing the sliding fit between the guide post and the guide groove, the edge wrapping height and glue dispensing amount can be adjusted without replacing any parts, adapting to the glue wrapping needs of battery cells of different specifications or thicknesses.

Benefits of technology

Simplify the operation process, improve production efficiency, reduce production costs, ensure appropriate edge binding height and glue output, avoid excessive or insufficient glue, and improve material utilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a rubber coating wheel, and relates to the technical field of rubber coating. The rubber coating wheel comprises a first wheel body, a second wheel body and a rubber outlet structure, wherein the glue outlet structure is connected between the first wheel body and the second wheel body. One of the first wheel body and the second wheel body is provided with a guide column, and the other is provided with a guide groove. On the basis, the guide column is in sliding fit with the guide groove and used for adjusting the distance between the first wheel body and the second wheel body so as to adjust the glue outlet amount of the glue outlet structure. On the basis, on one hand, the rubber coating wheel carries out self-adaptive distance adjustment according to different thicknesses of the battery pieces, and it is ensured that the proper edge covering height can be provided; and on the other hand, the glue outlet amount is directly controlled according to the change of the distance, the use amount of the glue can be finely adjusted according to actual requirements, and the excessive or insufficient situation is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of rubber coating technology, and more specifically, to a rubber-coated wheel. Background Technology

[0002] With the development of the manufacturing industry, modern production lines have increasingly higher requirements for precision and efficiency. In existing edge-binding processes, the edge-binding step is a common and important processing step. To adapt to the processing needs of different products, the edge-binding process usually requires precise adjustment of the edge-binding groove height.

[0003] However, in existing technologies, when the hemming groove needs height adjustment, the usual practice is to replace the entire hemming wheel to achieve this. This method is not only complex and time-consuming, but also prone to reduced production efficiency and increased production costs during frequent adjustments. Utility Model Content

[0004] The purpose of this utility model is to provide a coating wheel that can change the coating height by simply adjusting the distance between the upper and lower wheels without replacing any parts, so as to adapt to the coating requirements of battery cells of different specifications or thicknesses. This achieves the beneficial effects of simplifying the operation process and improving production efficiency and production costs.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] In a first aspect, this utility model provides a rubber-coated wheel, including a first wheel body, a second wheel body, and a glue dispensing structure; wherein, the glue dispensing structure is connected between the first wheel body and the second wheel body; one of the first wheel body and the second wheel body is provided with a guide post, and the other is provided with a guide groove, the guide post and the guide groove are slidably engaged, and are used to adjust the distance between the first wheel body and the second wheel body, so as to adjust the glue dispensing amount of the glue dispensing structure.

[0007] In an optional embodiment, the dispensing structure is spiral-shaped and includes multiple spiral coils connected in sequence. Two spiral coils at the ends are respectively connected to the first wheel body and the second wheel body, and a dispensing port is formed between any two adjacent spiral coils.

[0008] In an optional embodiment, the dispensing structure includes a first cylindrical component and a second cylindrical component, one of which is connected to a first wheel body and the other is connected to a second wheel body; wherein, the first cylindrical component is sleeved on the second cylindrical component, and the cylindrical wall of the second cylindrical component has multiple dispensing ports along the axial direction.

[0009] In an optional embodiment, the first cylinder extends less along the axial direction than the second cylinder extends less along the axial direction.

[0010] In an optional embodiment, a limiting portion is formed by extending radially outward from one end of the first cylindrical member near the second cylindrical member. When the first cylindrical member is located on the first wheel body / second wheel body, the annular area of ​​the first wheel body / second wheel body located outside the first cylindrical member, together with the outer wall of the first cylindrical member and the limiting portion, forms an adhesive groove.

[0011] In an optional embodiment, the glue dispensing structure includes at least two first engaging parts and at least two second engaging parts. The at least two first engaging parts are connected to one of the first wheel body and the second wheel body and are spaced apart along the circumference of the rubber-coated wheel. The at least two second engaging parts are connected to the other one and correspond one-to-one with the first engaging parts.

[0012] In an optional embodiment, the first engaging member includes a first engaging portion and a second engaging portion disposed radially opposite each other, the first engaging portion and the second engaging portion respectively engaging with the two sides opposite to the second engaging member.

[0013] In an optional embodiment, the first engaging member is provided with at least two first engaging slots, and the second engaging member is provided with at least two second engaging slots. The first engaging slots and the second engaging slots are both spaced apart along the axial direction of the rubber-coated wheel. The rubber-coated wheel also includes at least two buckles, and the two ends of each buckle are respectively engaged with the corresponding first engaging slot and the second engaging slot.

[0014] In an optional embodiment, the guide post is provided with a threaded portion, and the guide groove is a threaded groove that mates with the threaded portion.

[0015] In an optional embodiment, the guide post is provided with a groove along the radial direction of the rubber-coated wheel, and the groove wall of the guide groove is provided with a protrusion that mates with the groove.

[0016] The beneficial effects of the rubber-coated wheel provided in this embodiment of the invention include:

[0017] This invention provides a coating wheel, comprising a first wheel body, a second wheel body, and a glue dispensing structure. The glue dispensing structure is connected between the first and second wheel bodies. One of the first and second wheel bodies is provided with a guide post, and the other with a guide groove. Based on this, the guide post and guide groove slide together to adjust the distance between the first and second wheel bodies, thereby adjusting the glue dispensing amount. Therefore, on the one hand, the coating wheel adaptively adjusts the distance according to the different thicknesses of the battery cells to ensure a suitable coating height; on the other hand, the change in distance directly controls the glue dispensing amount, and the amount of glue used can be fine-tuned according to actual needs, avoiding excessive or insufficient application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the rubber-coated wheel provided in this embodiment;

[0020] Figure 2 This is another structural schematic diagram of the rubber-coated wheel provided in this embodiment;

[0021] Figure 3 This is a first-view schematic diagram of another structure of the rubber-coated wheel provided in this embodiment;

[0022] Figure 4 This is a second-view schematic diagram of another structure of the rubber-coated wheel provided in this embodiment.

[0023] Icons: 10- Rubber-coated wheel; 100- First wheel body; 300- Second wheel body; 500- Glue dispensing structure; 510- Spiral coil; 520- First cylinder; 521- Limiting part; 530- Second cylinder; 540- First engaging part; 541- First engaging part; 543- Second engaging part; 545- First slot; 550- Second engaging part; 551- Second slot; 590- Glue outlet; 710- Guide post; 711- Slide groove; 713- Threaded part; 730- Guide groove; 731- Protrusion; 733- Threaded groove. Detailed Implementation

[0024] In related technologies, when the edge-sealing groove needs height adjustment, the usual practice is to replace the entire edge-sealing wheel to achieve this goal. This has the problems of complicated operation and long time consumption, which can easily lead to reduced production efficiency and increased production costs.

[0025] To address the aforementioned problems, this utility model provides a coating wheel that allows for the adjustment of the coating height by simply changing the distance between the upper and lower wheels without replacing any parts. This adapts to the coating requirements of battery cells of different specifications or thicknesses, thereby simplifying the operation process and improving production efficiency and reducing production costs.

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0031] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0032] The following describes in detail the overall structure, working principle, and technical effects of the rubber-coated wheel 10 provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0033] Please see Figures 1 to 3 This application provides a coating wheel 10, applied in the field of coating technology, which can change the coating height to adapt to the coating requirements of battery cells of different specifications or thicknesses. The coating wheel 10 includes a first wheel body 100, a second wheel body 300, and a glue dispensing structure 500. The glue dispensing structure 500 is connected between the first wheel body 100 and the second wheel body 300. One of the first wheel body 100 and the second wheel body 300 is provided with a guide post 710, and the other is provided with a guide groove 730.

[0034] Based on the above, the guide post 710 and the guide groove 730 slide together to adjust the distance between the first wheel body 100 and the second wheel body 300, thereby adjusting the amount of adhesive dispensed by the adhesive dispensing structure 500. Therefore, on the one hand, the adhesive-coating wheel 10 adaptively adjusts its spacing according to the different thicknesses of the battery cells to ensure a suitable edge-coating height; on the other hand, the change in spacing directly controls the amount of adhesive dispensed, and the amount of adhesive used can be fine-tuned according to actual needs to avoid over- or under-dispensing.

[0035] The above-described configuration means that the coating wheel 10 provided in this application does not require frequent changes to coating tools of different specifications. Simply adjusting the spacing of the coating wheel 10 is sufficient to handle various types of solar cells, simplifying the operation process and improving production efficiency and costs. At the same time, this application also improves material utilization, reduces unnecessary waste, and lowers production costs by precisely controlling the amount of adhesive dispensed.

[0036] In some embodiments, for precise control of the spacing adjustment, such as Figure 2 As shown, the guide post 710 has a threaded portion 713, and the guide groove 730 is a threaded groove 733 that mates with the threaded portion 713. In practical applications, when it is necessary to adjust the distance between the first wheel body 100 and the second wheel body 300, the meshing position of the threaded portion 713 and the threaded groove 733 is changed by rotating the guide post 710. During the above process, the amount of distance change can be accurately calculated based on the thread pitch for each rotation of a certain angle, ensuring that each adjustment is predictable and controllable. In addition, it should be noted that the thread design can select different thread pitches according to actual needs, which can achieve both fine adjustment within a small range and coarse adjustment within a larger range.

[0037] In other embodiments, to improve the stability of the spacing adjustment, such as Figure 1 As shown, the guide post 710 has a groove 711 along the radial direction of the rubber-coated wheel 10, and the groove wall of the guide groove 730 has a protrusion 731 that mates with the groove 711. In practical applications, when it is necessary to adjust the distance between the first wheel body 100 and the second wheel body 300, the protrusion 731 slides within the groove 711, serving as a guide and limiter to prevent offset or jamming during adjustment. In the above process, the cooperation between the groove 711 and the protrusion 731 ensures the smoothness and consistency of the distance change during each adjustment, avoiding uneven stress distribution.

[0038] Please refer to it again. Figure 1The glue dispensing structure 500 is spiral-shaped, comprising multiple spiral coils 510 connected in sequence. Two spiral coils 510 at the ends are connected to the first wheel body 100 and the second wheel body 300, respectively, and a glue dispensing port 590 is formed between any two adjacent spiral coils 510. It is easy to understand that the spiral coils 510 are similar to springs, capable of expanding and contracting according to changes in spacing. Furthermore, during expansion and contraction, the number and size of the glue dispensing ports 590 also change accordingly, ensuring that the glue dispensing amount always matches the current spacing setting.

[0039] Specifically, when the spacing increases, the spiral coil 510 extends, and the glue outlet 590 becomes larger; when the spacing decreases, the spiral coil 510 contracts, and the glue outlet 590 becomes smaller. Based on the above adaptive characteristics, this coating wheel 10 ensures that regardless of the thickness of the battery cell, it can provide a suitable edge height and glue dispensing amount, guaranteeing coating quality. Furthermore, the spiral design allows for adjustment of the coating width according to actual needs. When a narrower edge is required, the spacing between the two wheels can be reduced, allowing the glue to be applied only to a small area. When a wider edge is required, the spacing between the two wheels can be increased, allowing more glue to flow out and covering a larger area.

[0040] Please refer to it again. Figure 2 The adhesive dispensing structure 500 includes a first cylindrical member 520 and a second cylindrical member 530. One of the first cylindrical member 520 and the second cylindrical member 530 is connected to a first wheel body 100, and the other is connected to a second wheel body 300. Based on this, the first cylindrical member 520 is fitted onto the second cylindrical member 530, and the cylindrical wall of the second cylindrical member 530 has multiple adhesive dispensing ports 590 along the axial direction. In practical applications, when processing thinner battery cells, reducing the spacing allows the first cylindrical member 520 to partially block the adhesive dispensing ports 590 on the second cylindrical member 530; when processing thicker battery cells, increasing the spacing exposes more adhesive dispensing ports 590. In other words, by adjusting the spacing between the first wheel body 100 and the second wheel body 300, it is possible to flexibly handle battery cells of different heights, ensuring that each height of battery cell can receive appropriate adhesive application.

[0041] Optionally, the axial extension length of the first cylindrical member 520 is less than the axial extension length of the second cylindrical member 530. It is easily understood that, due to the shorter axial extension length of the first cylindrical member 520, even when the distance between the first wheel body 100 and the second wheel body 300 decreases, the first cylindrical member 520 will not completely cover all the adhesive outlets 590 on the second cylindrical member 530. Based on this, it is ensured that even in the most compact configuration, some adhesive outlets 590 remain open, guaranteeing a certain amount of adhesive dispensing and uniformity. Generally, the minimum distance between the first wheel body 100 and the second wheel body 300 ranges from 0.15 to 0.2 mm to ensure that it is greater than the thickness of the thinnest battery cell.

[0042] Furthermore, a limiting portion 521 is formed radially outward from the end of the first cylindrical member 520 near the second cylindrical member 530. Also, when the first cylindrical member 520 is located within the first wheel body 100 / second wheel body 300, the annular region of the first wheel body 100 / second wheel body 300 located outside the first cylindrical member 520, together with the outer wall of the first cylindrical member 520 and the limiting portion 521, forms a dispensing groove. It is easily understood that the design of the dispensing groove allows the adhesive to flow concentrated within a specific area, preventing random diffusion or overflow and improving coating accuracy.

[0043] Please see Figure 3 The glue dispensing structure 500 includes at least two first engaging members 540 and at least two second engaging members 550. The at least two first engaging members 540 are connected to one of the first wheel body 100 and the second wheel body 300, and are spaced apart circumferentially along the rubber-coated wheel 10. The at least two second engaging members 550 are connected to the other first engaging member, and correspond one-to-one with each of the first engaging members 540. It should be noted that the multiple engaging members spaced apart circumferentially and correspondingly with each other ensure precise alignment of the first wheel body 100 and the second wheel body 300 in all directions.

[0044] Additionally, it should be noted that an adhesive outlet 590 is formed between the first engaging member 540 and the second engaging member 550 in adjacent sets. As the distance between the first wheel body 100 and the second wheel body 300 decreases, the first engaging member 540 and the second engaging member 550 engage more deeply, and the axial extension length of the adhesive outlet 590 on the coated wheel 10 becomes shorter, providing a smaller adhesive dispensing amount to accommodate thinner battery cells. Conversely, the axial extension length of the adhesive outlet 590 on the coated wheel 10 increases, providing a larger adhesive dispensing amount to accommodate thicker battery cells.

[0045] Optionally, please refer to Figure 4 The first engaging component 540 includes a first engaging portion 541 and a second engaging portion 543 arranged radially opposite to each other, which respectively engage with the opposite sides of the second engaging component 550. By engaging the first engaging portion 541 and the second engaging portion 543 with the opposite sides of the second engaging component 550, a stable double-sided fixing structure is formed, enhancing the connection strength of the individual engaging components, making the entire rubber-coated wheel 10 more stable, and reducing the possibility of loosening or displacement during operation.

[0046] Furthermore, the first engaging member 540 is provided with at least two first engaging slots 545, and the second engaging member 550 is provided with at least two second engaging slots 551. The first engaging slots 545 and the second engaging slots 551 are spaced apart along the axial direction of the coated wheel 10. The coated wheel 10 also includes at least two latches, each latch engaging with its corresponding first engaging slot 545 and second engaging slot 551 at both ends. Based on the engagement of the latches and slots, a stable locking structure is formed, which can effectively resist torsional forces and prevent the first wheel body 100 and the second wheel body 300 from twisting during operation. Therefore, when coating a battery cell of a certain thickness, the latches can engage with the corresponding first engaging slots 545 and second engaging slots 551, ensuring that the length of the adhesive outlet 590 extending axially is moderate, and the amount of adhesive dispensed is appropriate.

[0047] For example, when the first latching member 540 and the second latching member 550 are located on the first wheel body 100 and the second wheel body 300 respectively, and there are two first latching slots 545 and two latching slots 551, the latch can connect the first latching slot 545 closest to the first wheel body 100 and the second latching slot 551 closest to the second wheel body 300, or connect the first latching slot 545 furthest from the first wheel body 100 and the second latching slot 551 furthest from the second wheel body 300, or connect the first latching slot 545 furthest from the first wheel body 100 and the second latching slot 551 furthest from the second wheel body 300, or connect the furthest from the first wheel body and the first latching slot 545 furthest from the second wheel body 300 and the second latching slot 551 furthest from the second wheel body 300. Based on the above, three different outlet heights 590 are formed to accommodate three different battery cells.

[0048] In summary, this utility model provides a coating wheel 10, which includes a first wheel body 100, a second wheel body 300, and a glue dispensing structure 500. The glue dispensing structure 500 is connected between the first wheel body 100 and the second wheel body 300. One of the first wheel body 100 and the second wheel body 300 is provided with a guide post 710, and the other with a guide groove 730. Based on this, the guide post 710 and the guide groove 730 are slidably engaged to adjust the distance between the first wheel body 100 and the second wheel body 300, thereby adjusting the glue dispensing amount of the glue dispensing structure 500. Therefore, on the one hand, the coating wheel 10 adaptively adjusts the distance according to the different thicknesses of the battery cells to ensure a suitable coating height; on the other hand, the change in distance directly controls the glue dispensing amount, and the amount of glue used can be finely adjusted according to actual needs to avoid over- or under-dispensing.

[0049] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A rubber-coated wheel, characterized in that, It includes a first wheel body, a second wheel body, and a glue dispensing structure; wherein, the glue dispensing structure is connected between the first wheel body and the second wheel body; one of the first wheel body and the second wheel body is provided with a guide post, and the other is provided with a guide groove, the guide post and the guide groove are slidably engaged, and are used to adjust the distance between the first wheel body and the second wheel body, so as to adjust the glue dispensing amount of the glue dispensing structure.

2. The rubber-coated wheel according to claim 1, characterized in that, The dispensing structure is spiral-shaped and includes multiple spiral coils connected in sequence. The two spiral coils at the ends are respectively connected to the first wheel and the second wheel, and a dispensing port is formed between any two adjacent spiral coils.

3. The rubber-coated wheel according to claim 1, characterized in that, The dispensing structure includes a first cylindrical component and a second cylindrical component, one of which is connected to the first wheel body and the other is connected to the second wheel body; wherein, the first cylindrical component is sleeved on the second cylindrical component, and the cylindrical wall of the second cylindrical component has multiple dispensing ports along the axial direction.

4. The rubber-coated wheel according to claim 3, characterized in that, The first cylindrical member has a shorter axial extension than the second cylindrical member.

5. The rubber-coated wheel according to claim 3, characterized in that, The first cylindrical member extends radially outward from one end near the second cylindrical member to form a limiting portion. When the first cylindrical member is located on the first wheel / second wheel, the annular area of ​​the first wheel / second wheel located outside the first cylindrical member, together with the outer wall of the first cylindrical member and the limiting portion, forms a glue outlet groove.

6. The rubber-coated wheel according to claim 1, characterized in that, The glue dispensing structure includes at least two first engaging parts and at least two second engaging parts. The at least two first engaging parts are connected to one of the first wheel body and the second wheel body and are spaced apart along the circumference of the rubber-coated wheel. The at least two second engaging parts are connected to the other one and correspond one-to-one with the first engaging parts.

7. The rubber-coated wheel according to claim 6, characterized in that, The first engaging member includes a first engaging portion and a second engaging portion disposed radially opposite each other, the first engaging portion and the second engaging portion respectively engaging with the two sides opposite to the second engaging member.

8. The rubber-coated wheel according to claim 6, characterized in that, The first engaging component has at least two first slots, and the second engaging component has at least two second slots. The first slots and the second slots are spaced apart along the axial direction of the rubber-coated wheel. The rubber-coated wheel also includes at least two buckles, and the two ends of each buckle respectively engage with the corresponding first slot and second slot.

9. The rubber-coated wheel according to any one of claims 1 to 8, characterized in that, The guide post is provided with a threaded portion, and the guide groove is a threaded groove that mates with the threaded portion.

10. The rubber-coated wheel according to any one of claims 1 to 8, characterized in that, The guide post has a groove along the radial direction of the rubber-coated wheel, and the groove wall of the guide groove has a protrusion that mates with the groove.