Material belt conveying mechanism and winding device

Abstract

The utility model relates to the technical field of battery manufacturing, and discloses a material belt conveying mechanism and a winding device, the material belt conveying mechanism comprises a support and an adsorption roller, the adsorption roller is rotatably arranged on the support, the outer surface of the adsorption roller is provided with an adsorption hole group, and the adsorption hole group comprises a plurality of adsorption holes; the negative pressure assembly communicates with the multiple adsorption holes so that negative pressure can be formed in the multiple adsorption holes; the rotary driving part is arranged on the support, and the rotary driving part is connected with the adsorption roller so as to drive the adsorption roller to rotate around the axis of the adsorption roller. By the adoption of the winding device, when the material belt is conveyed to the downstream after being embossed, the conveying mechanism cannot abut against or affect the embossing of the material belt, the embossing effect and the embossing quality of the material belt are improved, waste is reduced, and the winding efficiency of the material belt is improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery manufacturing, and particularly relates to a tape conveying mechanism and a winding device. Background Art

[0002] Embossing of the electrode core tape refers to mechanically processing the surface of the positive or negative electrode material during the battery manufacturing process to form a specific microstructure. The purpose of this technology is to improve the overall performance of the battery by increasing the specific surface area of the electrode material, improving the contact between the electrode and the electrolyte, and enhancing the charge transfer efficiency, thereby increasing the energy density, cycle life, and safety of the battery.

[0003] Embossing is usually achieved by using rollers with specific textures. These rollers apply pressure when contacting the electrode material, thereby forming concave and convex structures on the material surface. This structure helps the migration of lithium ions during the charging and discharging process, reduces energy loss, and increases the reaction rate of the battery.

[0004] When the embossed electrode core tape is transferred downstream, the embossed bumps on the electrode core tape may be flattened by the transmission mechanism or affect the embossing effect of the tape, resulting in low embossing quality of the tape and thus affecting the subsequent winding efficiency of the tape. Summary of the Utility Model

[0005] The embodiments of the present application disclose a tape conveying mechanism and a winding device, which can reduce the pressing and influence on the embossed bumps on the tape surface when the embossed electrode core tape is transferred downstream, improve the embossing effect of the tape, and ensure the embossing quality of the tape.

[0006] To achieve the above object, in the first aspect, the embodiments of the present application disclose a tape conveying mechanism, including:

[0007] A support;

[0008] An adsorption roller, the adsorption roller is rotatably arranged on the support, and an adsorption hole group is arranged on the outer surface of the adsorption roller. The adsorption hole group includes a plurality of adsorption holes;

[0009] A negative pressure assembly, the negative pressure assembly is communicated with the plurality of adsorption holes to form a negative pressure in the plurality of adsorption holes;

[0010] A rotation driving member, the rotation driving member is arranged on the support, the rotation driving member is connected to the adsorption roller, and the rotation driving member drives the adsorption roller to rotate around the axis of the adsorption roller so that the adsorption roller can convey the tape to the downstream.

[0011] As an alternative, a vacuum extraction channel is provided inside the adsorption roller. The vacuum extraction channel extends along the length direction of the adsorption roller, and the first end of the vacuum extraction channel penetrates through the first end face of the adsorption roller. The multiple adsorption holes in the adsorption hole group are all connected to the vacuum extraction channel, and the first end of the vacuum extraction channel is communicated with the negative pressure assembly.

[0012] As an alternative, there are multiple vacuum extraction channels, and the multiple vacuum extraction channels are circumferentially distributed around the rotation axis of the adsorption roller. There are multiple adsorption hole groups, and the multiple adsorption hole groups are circumferentially distributed around the rotation axis of the adsorption roller. The multiple vacuum extraction channels are in one-to-one correspondence and communication with the multiple adsorption hole groups.

[0013] As an alternative, the negative pressure assembly includes a first vacuum extraction disc and a first negative pressure driving member. The first vacuum extraction disc is fixedly arranged on the support and is located on one axial side of the adsorption roller. A first air extraction groove is provided on the second end face of the first vacuum extraction disc. The first end face and the second end face are in axial abutment along the adsorption roller. The first air extraction groove is an arc-shaped groove, and the center of the first air extraction groove is located on the rotation axis of the adsorption roller. The projection of the first air extraction groove on the first end face covers part of the channel opening of the vacuum extraction channel on the first end face. The first negative pressure driving member is communicated with the first air extraction groove to form a negative pressure in the first air extraction groove.

[0014] As an alternative, the first vacuum extraction disc is further provided with an air outlet hole. The air outlet hole is arranged on the side face of the first vacuum extraction disc and is connected to the first air extraction groove. The first negative pressure driving member is communicated with the first air extraction groove through the air outlet hole.

[0015] As an alternative, the fixing assembly further includes an adjusting seat. The adjusting seat is arranged on the support, and the installation position of the adjusting seat can be adjusted around the rotation axis of the adsorption roller. The first vacuum extraction disc is fixedly arranged on the adjusting seat. The adsorption roller is rotationally connected to the support through a rotating shaft, and the first vacuum extraction disc is sleeved on the rotating shaft.

[0016] As an alternative, the adjusting seat is provided with an arc-shaped mounting hole. The adjusting seat is connected to the support through the arc-shaped mounting hole, and the center of the arc-shaped mounting hole is located on the rotation axis of the adsorption roller.

[0017] As an alternative, a first bearing is provided between the rotating shaft and the support, and a second bearing is provided between the rotating shaft and the first vacuum extraction disc.

[0018] As an alternative, the negative pressure assembly further includes a second vacuum pumping disc and a second negative pressure driving member. The second end of the vacuum pumping channel penetrates through the second end face of the adsorption roller. The second vacuum pumping disc is fixedly arranged on the support and is located on the other axial side of the adsorption roller. The first end face of the second vacuum pumping disc is provided with a second air pumping groove. The second end face of the adsorption roller abuts against the first end face of the second vacuum pumping disc along the axial direction of the adsorption roller. The second air pumping groove is an arc-shaped groove, and the center of the second air pumping groove is located on the rotation axis of the adsorption roller. The projection of the second air pumping groove on the second end face of the adsorption roller covers part of the channel opening of the vacuum pumping channel on the second end face. The second negative pressure driving member is communicated with the second air pumping groove to form a negative pressure in the second air pumping groove.

[0019] In a second aspect, an embodiment of the present application discloses a winding device, including:

[0020] The tape conveying mechanism described in the first aspect, and the tape conveying mechanism drives the tape to be conveyed along the feeding direction of the tape through a vacuum adsorption force;

[0021] A winding mechanism, which is arranged downstream of the tape conveying mechanism, and the winding mechanism is used for winding the tape.

[0022] As an alternative, the winding device further includes an embossing mechanism, which is arranged upstream of the tape conveying mechanism, and the embossing mechanism is used for embossing the tape and conveying the tape along the feeding direction of the tape;

[0023] As an alternative, the winding device further includes a first idler roller and a second idler roller. The first idler roller and the second idler roller are respectively arranged upstream and downstream of the tape conveying mechanism. The tape sequentially passes through the first idler roller, the tape conveying mechanism, and the second idler roller and is conveyed downstream. The first idler roller and the second idler roller enable the tape to have a preset wrapping angle on the adsorption roller, and the preset wrapping angle is 180°-300°.

[0024] Compared with the prior art, the beneficial effects of the present application are:

[0025] In the embodiment of the present application, by setting a vacuum winding mechanism to adsorb the tape embossed by the embossing mechanism through a vacuum adsorption force and convey it downstream, it is avoided that the embossing on the tape is flattened by the conveying mechanism when the embossed tape is conveyed, the embossing effect and quality of the tape are improved, the generation of waste is reduced, and the winding efficiency of the tape is improved. Description of the Drawings

[0026] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0027] Figure 1 It is a structural schematic diagram of a tape winding and conveying mechanism in the related art;

[0028] Figure 2 It is a schematic diagram of the embossing effect of the tape;

[0029] Figure 3 It is a schematic diagram of a tape conveying mechanism in the present application;

[0030] Figure 4 For Figure 3 Another structural schematic diagram of the tape conveying mechanism in;

[0031] Figure 5 For Figure 4 A structural schematic diagram of a vacuum pumping disc in the tape conveying mechanism in;

[0032] Figure 6 For Figure 5 Another structural schematic diagram of the vacuum pumping disc in;

[0033] Figure 7 For Figure 4 A structural schematic diagram of an adsorption roller in the tape conveying mechanism in;

[0034] Figure 8 It is a structural schematic diagram of a winding device of the present application.

[0035] Explanation of reference numerals:

[0036] 100 - tape conveying mechanism; 10 - tape; 11 - support; 12 - adsorption roller; 121 - adsorption hole group; 1211 - adsorption hole; 122 - vacuum pumping channel; 12A - first end face of the adsorption roller; 12B - second end face of the adsorption roller; 13 - negative pressure assembly; 131 - first vacuum pumping disc; 1311 - air extraction groove; 131A - first end face of the first vacuum pumping disc; 1312 - air outlet hole; 132 - first negative pressure driving member; 133 - second vacuum pumping disc; 133A - first end face of the second vacuum pumping disc; 134 - second negative pressure driving member; 14 - rotation driving member; 15 - adjusting seat; 15A - installation position; 151 - arc-shaped installation hole; 16 - rotating shaft; 17 - first bearing; 18 - second bearing; 200 - winding device; 21 - winding mechanism; 22 - embossing mechanism; 23 - first idler roller; 24 - second idler roller; F - rotation axis. Detailed Implementation Manner

[0037] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0038] In the present application, terms such as "upper" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0039] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances.

[0040] In addition, the terms "arrangement" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0041] In addition, terms such as "first" and "second" are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, the meaning of "a plurality" is two or more.

[0042] The embossing technology of the battery cell tape, as the core process in the production of lithium-ion batteries, mainly creates a microscopic structure by mechanically processing the surface of the positive or negative electrode materials of the battery. This technology enhances the energy density of the battery by increasing the specific surface area of the electrode materials, optimizing the interaction between the electrodes and the electrolyte, and enhancing the charge transfer efficiency, enabling the battery to have a longer cycle life and better safety.

[0043] Please refer to Figure 1 and Figure 2 , Figure 1 which is a winding device in the related art. Figure 2It is a simplified diagram of the embossing effect of the strip. When the battery cell strip 10 is transmitted to the downstream winding mechanism B after being embossed by the embossing mechanism A, the embossing bumps on the battery cell strip will be flattened by the transmission mechanism C or the embossing effect of the strip will be affected, resulting in low embossing quality of the strip and thus affecting the subsequent winding efficiency of the strip.

[0044] Based on this, the embodiments of the present application disclose a strip transmission mechanism and a winding device, which can prevent the transmission mechanism from abutting against or affecting the embossing of the strip when the strip is transmitted downstream after being embossed, improve the embossing effect and embossing quality of the strip, reduce the generation of waste materials, and improve the winding efficiency of the strip.

[0045] Next, the technical solutions of the present application will be further described in conjunction with the embodiments and the drawings.

[0046] Please refer to Figure 3 and Figure 4 , Figure 3 which is a schematic diagram of a strip transmission mechanism 100 in the present application. Figure 4 is Figure 3 another structural schematic diagram of the strip transmission mechanism 100 in

[0047] In the first aspect, the embodiments of the present application disclose a strip transmission mechanism 100, which includes:

[0048] A support 11;

[0049] An adsorption roller 12, which is rotatably arranged on the support 11. The outer surface of the adsorption roller 12 is provided with an adsorption hole group 121, and the adsorption hole group 121 includes a plurality of adsorption holes 1211;

[0050] A negative pressure assembly 13, which is communicated with a plurality of adsorption holes 1211 to form a negative pressure in the plurality of adsorption holes 1211;

[0051] A rotation driving member 14, which is arranged on the support 11. The rotation driving member 14 is connected to the adsorption roller 12, and the rotation driving member 14 drives the adsorption roller 12 to rotate around the axis of the adsorption roller 12 so that the adsorption roller 12 can transmit the strip 10.

[0052] First, by providing an adsorption hole group 121 including a plurality of adsorption holes 1211 on the outer surface of the adsorption roller 12, and connecting the plurality of adsorption hole groups 121 to the negative pressure assembly 13 to supply a vacuum adsorption force to the adsorption roller 12, the adsorption roller 12 can thus transmit the strip 10 through the vacuum adsorption force. The vacuum adsorption force replaces the traditional mechanical clamping method, avoiding the flattening of the embossing bumps due to the clamping force during the transmission of the strip 10, affecting the embossing effect, and reducing material waste. Secondly, the support 11 serves as the support structure of the entire strip conveying mechanism 100, ensuring the installation and alignment of each component, providing a stable installation platform for the adsorption roller 12, the negative pressure assembly 13, and the rotary drive member 14, and making the overall structure of the strip conveying mechanism 100 more stable.

[0053] Please refer to Figure 4 , in some embodiments, a vacuum pumping channel 122 is provided inside the adsorption roller 12. The vacuum pumping channel 122 extends along the length direction of the adsorption roller 12, and the first end of the vacuum pumping channel 122 penetrates through the first end face 12A of the adsorption roller 12. A plurality of adsorption holes 1211 in the adsorption hole group 121 are all connected to the vacuum pumping channel 122, and the first end of the vacuum pumping channel 122 is connected to the negative pressure assembly 13.

[0054] By providing the vacuum pumping channel 122 inside the adsorption roller 12, it is ensured that each adsorption hole 1211 in the adsorption hole group 121 can obtain a vacuum force, avoiding the problem of unstable transmission of the strip 10 caused by uneven local vacuum force, and improving the accuracy and efficiency of the transmission of the strip 10. Moreover, integrating the vacuum pumping channel 122 inside the adsorption roller 12 not only reduces the use of external pipelines and connectors, simplifies the overall layout of the vacuum system, but also reduces the risk of vacuum leakage caused by poor pipeline connection, improving the reliability and maintenance convenience of the system.

[0055] Optionally, there are a plurality of vacuum pumping channels 122, and the plurality of vacuum pumping channels 122 are circumferentially distributed around the rotation axis F of the adsorption roller 12; there are also a plurality of adsorption hole groups 121, and the plurality of adsorption hole groups 121 are circumferentially distributed around the rotation axis F of the adsorption roller 12, and the plurality of vacuum pumping channels 122 are in one-to-one correspondence and connection with the plurality of adsorption hole groups 121.

[0056] Compared with one vacuum pumping channel 122, the corresponding connection of the plurality of vacuum pumping channels 122 and the plurality of adsorption hole groups 121 ensures the uniform distribution of the vacuum force on the adsorption roller 12, avoiding the problem of unstable transmission of the strip 10 caused by too strong or too weak local vacuum force, improving the accuracy of the transmission of the strip 10, and the design of the plurality of vacuum pumping channels 122 reduces the diameter of a single channel, improves the efficiency of the negative pressure assembly 13, and reduces energy consumption.

[0057] To achieve the adsorption and desorption of the strip 10 by the adsorption roller 12, please refer to Figures 3 to 7, in some embodiments, the negative pressure assembly 13 includes a first vacuum suction disc 131 and a first negative pressure driving member 132. The first vacuum suction disc 131 is fixedly disposed on the support 11 and located on one axial side of the adsorption roller 12. A first air suction groove 1311 is provided on a first end face 131A of the first vacuum suction disc 131. The first end face 12A abuts against the first end face 131A along the axial direction of the adsorption roller 12. The first air suction groove 1311 is an arc-shaped groove, and the center of the first air suction groove 1311 is located on the rotation axis F of the adsorption roller 12. The projection of the first air suction groove 1311 on the first end face 12A covers a part of the passage opening of the vacuum suction passage 122 on the first end face 12A. The first negative pressure driving member 132 is communicated with the first air suction groove 1311 to form a negative pressure in the first air suction groove 1311.

[0058] Specifically, the first vacuum suction disc 131 and the first air suction groove 1311 are provided, and the shape of the first air suction groove 1311 is arc-shaped. The center of the first air suction groove 1311 is located on the rotation axis F of the adsorption roller 12. The projection of the first air suction groove 1311 on the first end face 12A covers a part of the passage opening of the vacuum suction passage 122 on the first end face 12A. The first end face 12A abuts against the first end face 131A along the axial direction of the adsorption roller 12, so as to form a negative pressure by pumping air in the vacuum suction passage 122. Since the first air suction groove 1311 is an arc-shaped groove and the projection of the first air suction groove 1311 on the first end face covers a part of the passage opening of the vacuum suction passage 122 on the first end face 12A, a negative pressure is formed in the part of the vacuum suction passage 122 covered by the first air suction groove 1311, and no negative pressure and no adsorption force are formed in the vacuum suction passage 122 not covered by the first air suction groove 1311. The purpose is that when the material tape 10 passes through the adsorption area formed by the adsorption hole group 121 with adsorption force, the adsorption hole group 121 adsorbs the material tape 10 through the vacuum adsorption force provided by the vacuum suction passage 122, so that the material tape 10 rotates following the adsorption roller 12. When the vacuum suction passage 122 and the adsorption hole group 121 covered by the material tape 10 rotate out of the coverage range of the first air suction groove 1311, no negative pressure is formed in the vacuum suction passage 122 and the adsorption hole group 121, that is, no adsorption force on the material tape 10 is formed, and the material tape 10 leaves the adsorption roller 12 and is transferred to the downstream.

[0059] Among them, by setting the first vacuum pumping disc 131 and arranging the first air extraction groove 1311 on the first end face 131A of the first vacuum pumping disc 131, the vacuum adsorption force is supplied to the adsorption roller 12, and the transmission path of the vacuum force is more concise; the first air extraction groove 1311 is an arc-shaped groove, the center of the first air extraction groove 1311 is located on the rotation axis F of the adsorption roller 12, and the projection of the first air extraction groove 1311 on the first end face 12A of the adsorption roller 12 covers part of the channel opening of the vacuum pumping channel 122 on the first end face 12A of the adsorption roller 12 to realize the adsorption and desorption of the adsorption roller 12 to the strip 10, improving the flexibility and efficiency of the strip conveying mechanism 100.

[0060] Optionally, please refer to Figure 5 and Figure 6 , Figure 5 is Figure 4 a schematic structural diagram of the vacuum pumping disc 131 in the strip conveying mechanism 100 in Figure 6 and Figure 5 is another schematic structural diagram of the vacuum pumping disc 131 in . The above-mentioned first vacuum pumping disc 131 is further provided with an air outlet hole 1312, the air outlet hole 1312 is arranged on the side surface of the first vacuum pumping disc 131 and is connected to the first air extraction groove 1311, and the first negative pressure driving member 132 is communicated with the first air extraction groove 1311 through the air outlet hole 1312.

[0061] Among them, by arranging the air outlet hole 1312 on the side surface of the first vacuum pumping disc 131 and connecting the air outlet hole 1312 with the first negative pressure driving member 132, the connection between the first negative pressure driving member 132 and the first vacuum pumping disc 131 is more stable and concise, the transmission path of the vacuum adsorption force is shorter, and the utilization rate of the vacuum adsorption force is improved.

[0062] Please refer to Figure 3 and Figure 4 , in some embodiments, the strip conveying mechanism 100 further includes an adjusting seat 15, the adjusting seat 15 is arranged on the support 11, and the installation position of the adjusting seat 15 can be adjusted around the rotation axis of the adsorption roller 12. The first vacuum pumping disc 131 is fixedly arranged on the adjusting seat 15. The adsorption roller 12 is rotationally connected to the support 11 through a rotating shaft 16. The first vacuum pumping disc 131 is sleeved on the rotating shaft 16, and the adjusting seat 15 is further provided with an arc-shaped mounting hole 151. The adjusting seat 15 is connected to the support 11 through the arc-shaped mounting hole 151, and the center of the arc-shaped mounting hole 151 is located on the rotation axis F of the adsorption roller 12.

[0063] Among them, the position relationship between the first vacuum pumping disc 131 and the adsorption roller 12 can be adjusted through the adjusting seat 15, and the adsorption area can be adjusted according to the tape of different sizes or shapes, improving the adaptability of the equipment to different products and the processing efficiency. By precisely controlling the size and position of the adsorption area, the stability of the tape during the processing can be ensured, and product damage or processing errors caused by uneven adsorption can be reduced.

[0064] Optionally, please refer to Figure 4 , a first bearing 17 is provided between the rotating shaft 16 and the support 11, and a second bearing 18 is provided between the rotating shaft 16 and the first vacuum pumping disc 131. Among them, the first bearing 17 is arranged between the rotating shaft 16 and the support 11, reducing the friction force of the rotating shaft 16 during rotation and ensuring that the adsorption roller 12 can rotate smoothly. Through the friction-reducing effect of the first bearing 17, the rotation of the rotating shaft 16 is more stable, reducing the vibration and noise caused by friction, and improving the service life and reliability of the tape conveying mechanism 100; the second bearing 18 is located between the rotating shaft 16 and the first vacuum pumping disc 131 to ensure the stable fixation of the first vacuum pumping disc 131 on the adjusting seat 15, and at the same time allows the rotating shaft 16 to rotate smoothly within the first vacuum pumping disc 131. The presence of the second bearing 18 ensures the precise alignment between the first vacuum pumping disc 131 and the rotating shaft 16, avoiding uneven distribution of the vacuum force caused by relative position deviation and improving the stability and uniformity of the vacuum adsorption force.

[0065] Optionally, please refer to Figure 3 and Figure 4 , the negative pressure assembly 13 further includes a second vacuum pumping disc 133 and a second negative pressure driving member 134. The second end of the vacuum pumping channel 122 penetrates through the second end face 12B of the adsorption roller 12. The second vacuum pumping disc 133 is fixedly arranged on the support 11 and is located on the other axial side of the adsorption roller 12. The first end face 133A of the second vacuum pumping disc 133 is provided with a second air extraction groove. The second end face 12B of the adsorption roller 12 abuts against the first end face 133A of the second vacuum pumping disc 133 along the axial direction of the adsorption roller 12. The second air extraction groove is an arc-shaped groove, and the center of the second air extraction groove is located on the rotation axis F of the adsorption roller 12. The projection of the second air extraction groove on the second end face 12B of the adsorption roller 12 covers part of the channel opening of the vacuum pumping channel 122 on the second end face 12B of the adsorption roller 12. The second negative pressure driving member 134 is communicated with the second air extraction groove to form a negative pressure in the second air extraction groove.

[0066] First, compared with only having the first vacuum pumping plate 131 and the first air extraction groove 1311, the synergistic effect of the first vacuum pumping plate 131 and the second vacuum pumping plate 133 realizes the full coverage of the vacuum force on the adsorption roller 12. The arc-shaped design of the first air extraction groove 1311 and the second air extraction groove ensures the uniform vacuum adsorption force at both ends of the vacuum pumping channel 122. Through the design of the double vacuum pumping plates, the vacuum adsorption force is not only evenly distributed axially but also balanced circumferentially, avoiding the unstable transmission of the strip 10 caused by uneven local vacuum force. Secondly, the second vacuum pumping plate 133 is fixedly arranged on the support 11, on the other axial side of the adsorption roller 12, forming a symmetrical layout with the first vacuum pumping plate 131. A second air extraction groove is provided on the first end face 133A of the second vacuum pumping plate 133, which is an arc-shaped structure, and its center is located on the rotation axis F of the adsorption roller 12. The second air extraction groove is aligned with the second end face 12B of the adsorption roller 12, ensuring the uniform distribution of the vacuum force. The second negative pressure driving member 134 is communicated with the second air extraction groove, and a stable vacuum adsorption force is formed in the second air extraction groove by providing negative pressure.

[0067] Please refer to Figure 8 , Figure 8 which is a structural schematic diagram of a winding device 200 of the present application; Secondly, an embodiment of the present application discloses a winding device 200, and the winding device 200 includes:

[0068] A strip conveying mechanism 100, the strip conveying mechanism 100 is arranged downstream of the embossing mechanism 22, and the strip conveying mechanism 100 drives the strip 10 to convey along the feeding direction of the strip 10 through the vacuum adsorption force;

[0069] A winding mechanism 21, the winding mechanism 21 is arranged downstream of the strip conveying mechanism 100, and the winding mechanism 21 is used for winding the strip 10.

[0070] Specifically, the winding device 200 further includes an embossing mechanism 22, and the embossing mechanism 22 is used for embossing the strip 10 and conveying the strip 10 along the feeding direction of the strip 10; the embossing mechanism 22 embosses the surface of the strip 10 and conveys the strip 10 downstream along the feeding direction of the strip 10 to the strip conveying mechanism 100, and the strip conveying mechanism 100 conveys the embossed strip 10 to the winding mechanism 21 through the vacuum adsorption force, and the winding mechanism 21 winds the embossed strip 10.

[0071] Among them, the tape conveying mechanism 100 is arranged between the embossing mechanism 22 and the winding mechanism 21, and can drive the tape 10 to be conveyed downstream through vacuum adsorption force, so that the conveying mechanism will not affect the embossing effect of the tape 10 when the tape 10 is conveyed downstream after embossing, improving the embossing effect and quality of the tape 10, reducing the generation of waste, and improving the winding efficiency of the tape 10; the main driving mechanism 21 is arranged upstream of the embossing mechanism 22 to ensure the stable conveying of the tape 10, so that the tape 10 can enter the subsequent processing links at a constant speed.

[0072] In order to improve the stability and accuracy of the transmission of the tape 10, in some embodiments, please refer to Figure 8 , the tape conveying mechanism 100 further includes a first idler roller 23 and a second idler roller 24. The first idler roller 23 and the second idler roller 24 are respectively arranged upstream and downstream of the tape conveying mechanism 100. The tape 10 is sequentially conveyed downstream through the first idler roller 23, the tape conveying mechanism 100, and the second idler roller 24. The first idler roller 23 and the second idler roller 24 are configured to enable the covering area of the tape 10 on the adsorption roller 12 to cover the adsorption holes 1211 communicated with the first air extraction groove 1311.

[0073] On the one hand, the first idler roller 23 and the second idler roller 24 guide the tape 10 to be conveyed along a preset path, avoiding deviation and fluctuation during the conveying process, and improving the stability and accuracy of the transmission of the tape 10; on the other hand, by covering the adsorption hole group 121, the covering area of the tape 10 on the adsorption roller 12 can achieve a stable and uniform vacuum adsorption effect, avoiding the unstable transmission of the tape 10 caused by uneven adsorption force, and improving the embossing and winding quality of the tape 10.

[0074] Optionally, please refer to Figure 8 , the above-mentioned first idler roller 23 and second idler roller 24 enable the tape 10 to have a preset covering angle on the adsorption roller 12, and the preset covering angle is 180° - 300°. The preset covering angle, that is, the central angle corresponding to the contact arc length of the tape 10 on the adsorption roller 12, determines the contact length between the tape 10 and the adsorption roller 12, directly affecting the distribution and action time of the vacuum adsorption force. The design of the preset covering angle of 180° - 300° ensures that the tape 10 and the adsorption roller 12 have sufficient contact area, enables the vacuum adsorption force to be evenly distributed on the tape 10, and at the same time provides sufficient adsorption time to ensure the stability and accuracy of the tape 10 during the conveying process.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A tape conveying mechanism for a winding device, characterized in that, The tape conveying mechanism includes: A support; An adsorption roller rotatably arranged on the support. An adsorption hole group is provided on the outer surface of the adsorption roller. The adsorption hole group includes a plurality of adsorption holes for adsorbing the tape; A negative pressure component communicated with the plurality of adsorption holes to form a negative pressure in the plurality of adsorption holes; A rotation driving member arranged on the support and connected to the adsorption roller. The rotation driving member drives the adsorption roller to rotate around the axis of the adsorption roller so that the adsorption roller can convey the tape.

2. The tape conveying mechanism according to claim 1, characterized in that, A vacuum pumping channel is arranged in the adsorption roller. The vacuum pumping channel extends along the axial direction of the adsorption roller, and the first end of the vacuum pumping channel penetrates through the first end face of the adsorption roller. The plurality of adsorption holes in the adsorption hole group are all connected to the vacuum pumping channel, and the first end of the vacuum pumping channel is communicated with the negative pressure component.

3. The tape conveying mechanism according to claim 2, wherein There are a plurality of the vacuum pumping channels, and the plurality of vacuum pumping channels are circumferentially distributed around the rotation axis of the adsorption roller. There are a plurality of the adsorption hole groups, and the plurality of adsorption hole groups are circumferentially distributed around the rotation axis of the adsorption roller. The plurality of vacuum pumping channels are in one-to-one correspondence and communication with the plurality of adsorption hole groups.

4. The tape conveying mechanism according to claim 3, characterized in that, The negative pressure component includes a first vacuum pumping disc and a first negative pressure driving member. The first vacuum pumping disc is fixedly arranged on the support and located on one axial side of the adsorption roller. A first air extraction groove is provided on the first end face of the first vacuum pumping disc. The first end face of the adsorption roller abuts against the first end face of the first vacuum pumping disc along the axial direction of the adsorption roller. The first air extraction groove is an arc-shaped groove, and the center of the first air extraction groove is located on the rotation axis of the adsorption roller. The projection of the first air extraction groove on the first end face covers part of the channel openings of the vacuum pumping channel on the first end face. The first negative pressure driving member is communicated with the first air extraction groove to form a negative pressure in the first air extraction groove.

5. The tape conveying mechanism according to claim 4, wherein, The first vacuum pumping disc is further provided with an air outlet hole. The air outlet hole is arranged on the outer surface of the first vacuum pumping disc and connected to the first air extraction groove. The first negative pressure driving member is communicated with the first air extraction groove through the air outlet hole.

6. The tape conveying mechanism according to claim 4, characterized in that, The tape conveying mechanism further includes an adjustment seat arranged on the support, and the installation position of the adjustment seat can be adjusted around the rotation axis of the adsorption roller. The first vacuum pumping disc is fixedly arranged on the adjustment seat. The adsorption roller is rotatably connected to the support through a rotating shaft, and the first vacuum pumping disc is sleeved on the rotating shaft.

7. The tape conveying mechanism according to claim 6, characterized in that, The adjustment seat is provided with an arc-shaped installation hole, and the adjustment seat is connected to the support through the arc-shaped installation hole. The center of the arc-shaped installation hole is located on the rotation axis of the adsorption roller.

8. The tape conveying mechanism according to claim 2, characterized in that, The negative pressure assembly further includes a second vacuum pumping disc and a second negative pressure driving member. The second end of the vacuum pumping channel penetrates through the second end face of the adsorption roller. The second vacuum pumping disc is fixedly arranged on the support and located on the other axial side of the adsorption roller. The first end face of the second vacuum pumping disc is provided with a second air extraction groove. The second end face of the adsorption roller abuts against the first end face of the second vacuum pumping disc along the axial direction of the adsorption roller. The second air extraction groove is an arc-shaped groove, and the center of the second air extraction groove is located on the rotation axis of the adsorption roller. The projection of the second air extraction groove on the second end face of the adsorption roller covers part of the channel opening of the vacuum pumping channel on the second end face. The second negative pressure driving member is communicated with the second air extraction groove to form negative pressure in the second air extraction groove.

9. A winding device, characterized in that, The winding device includes: The tape conveying mechanism according to any one of claims 1-8, wherein the tape conveying mechanism drives the tape to convey along the feeding direction of the tape by vacuum adsorption force; A winding mechanism, which is arranged downstream of the tape conveying mechanism and is used for winding the tape.

10. The winding device according to claim 9, characterized in that, The winding device further includes an embossing mechanism, which is arranged upstream of the tape conveying mechanism and is used for embossing the tape and conveying the tape along the feeding direction of the tape.

11. The winding device according to claim 9, characterized in that, The winding device further includes a first idler roller and a second idler roller. The first idler roller and the second idler roller are respectively arranged upstream and downstream of the tape conveying mechanism. The tape sequentially passes through the first idler roller, the tape conveying mechanism and the second idler roller and conveys downstream. The first idler roller and the second idler roller enable the tape to have a preset wrapping angle on the tape conveying mechanism, and the preset wrapping angle is 180°-300°.

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