Adhesive film and printing device

Abstract

The utility model discloses a kind of adhesive film and printing device, adhesive film includes: substrate layer;Surface functional layer, along the thickness direction of substrate layer, surface functional layer is set to the first surface of substrate layer, surface functional layer is oil-proof layer;Bonding layer, along the thickness direction of substrate layer, bonding layer is set to the second surface of substrate layer, bonding layer is used to be bonded with the bearing platform of printing device. Printing device includes: support;Bearing platform is set to support, and bearing platform has bearing surface;Adhesive film, the bonding layer of adhesive film is bonded with bearing surface, and the surface functional layer of adhesive film is used to carry battery piece;Cleaning mechanism is set to support, and cleaning mechanism is used to clean the surface functional layer of adhesive film. The adhesive film provided in the embodiment of the application can be reused after cleaning, and the waste caused by the inability to reuse the printing table paper is reduced.

Description

Technical Field

[0001] This application relates to the field of battery production equipment technology, and more particularly to an adhesive film and printing apparatus. Background Technology

[0002] Screen printing is one of the core processes in solar cell production, mainly used to print metal electrodes on the surface of the cell to form a current collection and transmission structure. To transport the cell to the printing table for screen printing, current technology typically uses a printing table paper to support the cell and move it.

[0003] However, printing table paper is easily permeated by ink, solvents, and contaminated by pulp, requiring frequent replacement. This not only increases production costs but also causes downtime during replacement, impacting production efficiency. Furthermore, the large-scale use of printing table paper means significant paper consumption, and discarded table paper is difficult to degrade in the natural environment, placing a burden on the environment. Utility Model Content

[0004] This utility model discloses an adhesive film and a printing device. By using a multi-layer composite adhesive film to replace the traditional table paper, the printing device achieves the purpose of easy cleaning and reusability of the adhesive film.

[0005] To achieve the above objectives, the first aspect of this utility model discloses an adhesive film, comprising:

[0006] Substrate layer;

[0007] A surface functional layer is disposed on the first surface of the substrate layer along the thickness direction of the substrate layer, and the surface functional layer is an ink-resistant layer;

[0008] An adhesive layer is disposed on a second surface of the substrate layer along the thickness direction of the substrate layer. The adhesive layer is used to bond with the support platform of the printing apparatus, wherein the second surface and the first surface are disposed opposite to each other.

[0009] As an optional implementation, the adhesive film further includes: a plurality of vent holes, all of which penetrate the adhesive film along the thickness direction of the adhesive film, wherein the plurality of vent holes are spaced apart in the length direction of the adhesive film and spaced apart in the width direction of the adhesive film.

[0010] As an optional implementation, the adhesive film further includes a dustproof layer, which is disposed along the thickness direction of the adhesive film on the side of the surface functional layer opposite to the substrate layer, and the dustproof layer is used to isolate the surface functional layer from external dust.

[0011] As an optional implementation, the thickness 'a' of the adhesive film satisfies 0.4 mm ≤ a ≤ 0.6 mm; and / or, the surface functional layer is a nano-ceramic coating; and / or, the substrate layer is a modified polyurethane or thermoplastic elastomer; and / or, the adhesive layer is a pressure-sensitive adhesive.

[0012] The second aspect of this utility model discloses a printing apparatus, comprising: a support; a support platform disposed on the support, the support platform having a support surface; an adhesive film as described in the first aspect, wherein the adhesive layer of the adhesive film is bonded to the support surface, and the surface functional layer of the adhesive film is used to support battery cells; and a cleaning mechanism disposed on the support, the cleaning mechanism being used to clean the surface functional layer of the adhesive film.

[0013] As an optional implementation, the adhesive film is wrapped around the circumferential outer side of the carrier platform, and the carrier surface has a carrier station for bonding the adhesive layer; the printing device further includes a driving assembly connected to the adhesive film for driving the adhesive film to rotate around the carrier platform along a preset closed trajectory, so that the adhesive film is bonded to the carrier station in turn at different circumferential locations, wherein the carrier station is located on the preset closed trajectory.

[0014] As an optional implementation, the driving assembly further includes: a rotating member rotatably disposed on the bracket, the rotating member being supported on the adhesive film to restrict the adhesive film to the preset closed trajectory, and a portion of the outer surface of the rotating member being bonded to the adhesive layer of the adhesive film to drive the adhesive film to rotate when the rotating member rotates; and a driving member connected to the rotating member, the driving member being used to drive the rotating member to rotate.

[0015] As an optional implementation, a standby station is provided below the support platform. The standby station is located on the preset closed trajectory. The cleaning mechanism and the standby station are arranged opposite each other to clean the part of the adhesive film that has rotated to the standby station. In the vertical direction, both the standby station and the cleaning mechanism are located below the support platform.

[0016] As an optional implementation, the printing apparatus includes: a wiping member rotatably disposed on the support, a portion of the outer surface of the wiping member being configured to roll into contact with the surface functional layer of the adhesive film located at a standby position to wipe the surface functional layer; and a cleaning tank disposed on the support, the cleaning tank containing a cleaning solution, at least a portion of the wiping member being immersed in the cleaning solution.

[0017] As an optional implementation, the printing apparatus further includes a blower, which is disposed on the side of the adhesive film away from the bearing station along its own rotation direction, and the blower nozzle faces the surface functional layer of the adhesive film, and the blower is used to blow a dry airflow onto the adhesive film.

[0018] Compared with the prior art, the beneficial effects of this application are:

[0019] The adhesive film provided in this application embodiment achieves efficient application in screen printing of solar cells through a substrate layer, a surface functional layer, and an adhesive layer. During the printing process, the adhesive layer adheres to the printing device, while the surface functional layer supports the solar cell for printing. The surface functional layer, through its ink-resistant properties, enables the adhesive film to be reusable and washable, overcoming the limitations of traditional printing table paper, such as easy contamination, frequent replacement, and environmental issues. The adhesive layer ensures traceless adhesion and re-adhesion performance of the adhesive film, improving the stability of the printing process and the quality of the solar cell.

[0020] The printing apparatus disclosed in this utility model achieves efficient printing through the synergistic effect of its various components. The support frame provides stable support, the carrier platform provides a flat bearing surface for the battery cells, and the adhesive film is placed on the carrier surface to support the battery cells, ensuring smooth printing and improved printing quality. The cleaning mechanism cleans the functional layer of the adhesive film, ensuring its cleanliness and reusability. This printing apparatus, through the cleaning mechanism, ensures the reusability of the adhesive film, reduces production costs, and minimizes resource waste and environmental pollution. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the adhesive film provided in the embodiments of this application;

[0023] Figure 2 This is a schematic diagram of the structure of the vent provided in the embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the printing apparatus provided in the embodiments of this application.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100-Adhesive film; 101-Substrate layer; 102-Surface functional layer; 103-Adhesive layer; 104-Ventilation hole; 200-Printing device; 202-Supporting platform; 203-Cleaning mechanism; 2031-Wiping component; 2032-Cleaning tank; 204-Rotating component; 205-Blowing component; A-Supporting station; B-Standby station. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] In this application, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation.

[0029] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0030] Furthermore, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0031] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0032] In the production of solar cells, the main function of screen printing is to print metal electrodes on the surface of the cells, thereby constructing a current collection and transmission system. To smoothly transport the cells onto the printing table for screen printing, the current practice is to use a printing table sheet to support and move the cells.

[0033] However, printing table paper has poor durability. Because various inks and solvents are used in screen printing, these substances can easily penetrate the fibers of the table paper. Simultaneously, the printing paste can easily contaminate the surface of the table paper during printing. These factors combined lead to a decline in the performance of the table paper, rendering it unusable and necessitating frequent replacement. This frequent replacement not only increases production costs but also causes production line downtime due to the time required for replacement, thus impacting overall production efficiency.

[0034] Secondly, from an environmental perspective, the extensive use of printing table paper places a burden on the environment. The production of this paper requires the felling of numerous trees, damaging forest resources. Furthermore, discarded printing table paper, contaminated with inks, solvents, and pulp, is difficult to degrade in the natural environment. If this waste paper is not properly disposed of, it will accumulate in the environment, polluting soil and water bodies and negatively impacting ecosystems.

[0035] Finally, printing table paper also has certain functional limitations. In terms of antistatic properties, traditional printing table paper cannot effectively prevent the generation and accumulation of static electricity. During screen printing, static electricity may attract dust and other impurities, affecting print quality and precision. Furthermore, the high-temperature resistance of printing table paper is not ideal, making it unsuitable for some printing processes requiring higher temperatures. This, to some extent, limits the optimization of processes and technological innovation in solar cell production.

[0036] In view of this, embodiments of this application disclose an adhesive film and a printing apparatus. By using an adhesive film with a surface functional layer that has ink-resistant properties to replace traditional table paper, the printing apparatus achieves the purpose of easy cleaning and reusability of the adhesive film.

[0037] The technical solution of this application will be further described below with reference to the embodiments and accompanying drawings.

[0038] Please see Figure 1 , Figure 1This is a schematic diagram of the structure of the adhesive film 100 provided in the embodiments of this application. The first aspect of this utility model discloses an adhesive film 100, comprising: a substrate layer 101; a surface functional layer 102 disposed on a first surface of the substrate layer 101 along the thickness direction of the substrate layer 101, the surface functional layer 102 being an ink-resistant layer; and an adhesive layer 103 disposed on a second surface of the substrate layer 101 along the thickness direction of the substrate layer 101, the adhesive layer 103 being used for bonding to a support platform 202 of a printing apparatus 200, wherein the second surface and the first surface are disposed opposite to each other.

[0039] The adhesive film 100 comprises a substrate layer 101, a surface functional layer 102, and an adhesive layer 103. The substrate layer 101 provides basic structural support for the adhesive film 100, maintaining its shape and withstanding the weight and pressure of the solar cells during the printing process. The substrate layer 101 is made of a material with good mechanical properties to ensure sufficient durability and stability of the adhesive film 100 in complex printing environments. Therefore, the adhesive film 100 can be applied to offset printing presses, digital inkjet equipment, 3D printing platforms, and other similar applications.

[0040] Optionally, the adhesive film 100 can be coated using extrusion technology combined with magnetron sputtering to ensure the density and functional stability of each layer in the adhesive film 100. The parameters for extrusion technology combined with magnetron sputtering coating can be: sputtering power ≥ 200 W, vacuum degree ≤ 1 × 10⁻³ Pa, melt temperature 180-220 °C, and interlayer adhesion ≥ 8 N / mm. 2 .

[0041] A surface functional layer 102 is disposed on the first surface of the substrate layer 101. The surface functional layer 102 is a layer that directly contacts the battery cell during the printing process. The main function of the surface functional layer 102 is to prevent the penetration and contamination of ink, solvent, and paste. Preventing the penetration of ink, solvent, and paste helps to extend the service life of the adhesive film 100, reduce the replacement frequency, thereby reducing production costs and downtime caused by replacement.

[0042] It is understood that the surface functional layer 102 can be made of an ink-resistant and easy-to-clean material, thereby making the surface functional layer 102 washable. After the adhesive film 100 is used, it can be reused by cleaning, thereby improving the utilization rate of the adhesive film 100.

[0043] Optionally, the surface functional layer 102 may have a certain amount of friction with the battery cell to ensure that the adhesive film 100 can stably support the battery cell and drive its movement. The surface functional layer 102 may be UV cured to increase its hardness and scratch resistance.

[0044] In addition, the ink-resistant properties of the surface functional layer 102 help maintain the cleanliness of the surface of the film 100, thereby improving printing quality and ensuring the clarity and accuracy of the metal electrode pattern on the battery cell.

[0045] The adhesive layer 103 is located on the second surface of the substrate layer 101 and is used to bond with the support stage 202 of the printing apparatus 200. The function of the adhesive layer 103 is to ensure a stable bond between the adhesive film 100 and the support stage 202 during the printing process, preventing displacement or loosening of the adhesive film 100, thereby ensuring the accuracy of the printed position of the battery cells. The residue-free and re-adhesive properties of the adhesive layer 103 allow for easy cleaning and reinstallation of the adhesive film 100 after use, improving production flexibility and convenience.

[0046] Thus, the adhesive film 100 provided in this embodiment achieves efficient application in screen printing of solar cells through a substrate layer 101, a surface functional layer 102, and an adhesive layer 103. During the printing process, the adhesive layer 103 adheres to the printing apparatus 200, and the surface functional layer 102 supports the solar cell for printing. The surface functional layer 102, through its ink-resistant properties, enables the adhesive film 100 to be reusable and washable, solving the limitations of traditional printing table paper, such as easy contamination, frequent replacement, and environmental issues. The adhesive layer 103 ensures the adhesive film 100's residue-free adhesion and re-adhesion performance, improving the stability of the printing process and the quality of the solar cell.

[0047] Please see Figure 2 , Figure 2 This is a schematic diagram of the structure of the vent 104 provided in an embodiment of this application. In some embodiments, the adhesive film 100 further includes a plurality of vents 104, which penetrate the adhesive film 100 along the thickness direction. The plurality of vents 104 are spaced apart along the length direction of the adhesive film 100 and spaced apart along the width direction of the adhesive film 100.

[0048] First, the vent holes 104 help maintain the adhesion of the film 100 to the solar cells. During screen printing, the printing press typically uses the suction force generated by airflow to fix the solar cells, ensuring their stable position during printing. The vent holes 104 in the film 100 allow airflow, enabling the suction force generated by the press to be effectively transferred to the solar cells, preventing displacement or spillage during printing, thereby improving printing accuracy and quality.

[0049] The air vents 104, rationally distributed along the length and width of the adhesive film 100, ensure uniform airflow, allowing the adhesive film 100 to maintain good air permeability in all directions. This uniform air permeability helps to further improve the adsorption effect of the battery cells and the printing quality.

[0050] Secondly, the vent 104 helps to expel air between the adhesive film 100 and the battery cell during the printing process. When the battery cell is placed on the adhesive film 100, air may remain between them. If this air is not expelled in time, it may affect the adhesion between the battery cell and the adhesive film 100, thus affecting the printing effect. The vent 104 provides a channel for gas to escape, ensuring close contact between the battery cell and the adhesive film 100, which is beneficial to improving the uniformity and reliability of printing.

[0051] In some embodiments, the adhesive film 100 further includes a dustproof layer (not shown in the figure), which is disposed along the thickness direction of the adhesive film 100 on the side surface of the surface functional layer 102 facing away from the substrate layer 101, and is used to isolate the surface functional layer 102 from external dust.

[0052] The dustproof layer effectively prevents external dust, particles, and other impurities from contaminating the surface functional layer 102. During screen printing, the printing environment is typically complex, and the air may contain a large amount of dust, particles, and ink droplets. Once these impurities adhere to the surface functional layer 102, they may affect the ink's adhesion and conductivity. The dustproof layer acts as a protective shield for the film 100, isolating these contaminants and ensuring the cleanliness and performance stability of the surface functional layer 102. This improves printing quality and avoids printing defects caused by impurities.

[0053] Secondly, the dustproof layer helps extend the service life of the adhesive film 100. Although the surface functional layer 102 has functions such as ink resistance, it is still subject to erosion and wear from dust and other contaminants when exposed to air for a long time. The presence of the dustproof layer reduces the friction and chemical erosion of the surface functional layer 102 by dust, slows down the wear rate of the surface functional layer 102, and enables the adhesive film 100 to maintain a good working condition for a longer period of time, reducing the frequency of replacement and lowering production costs.

[0054] Furthermore, the dustproof layer reduces the frequency and difficulty of cleaning and maintenance. Without a dustproof layer, the adhesive film 100 easily accumulates dust on its surface after a period of use, requiring frequent cleaning to maintain printing quality. The dustproof layer effectively prevents dust adhesion, extending the cleaning cycle. Simultaneously, due to its excellent dustproof properties, the layer makes it easier to remove small amounts of dust during cleaning, reducing the use of chemical reagents and potential damage to the surface functional layer 102, further improving the efficiency and economy of the adhesive film 100.

[0055] Alternatively, the dustproof layer can be an integrated antistatic carbon nanotube coating, making the dustproof layer suitable for dustproofing digital printing.

[0056] Please see Figure 1In some embodiments, the thickness 'a' of the adhesive film 100 satisfies 0.4 mm ≤ a ≤ 0.6 mm.

[0057] From a mechanical performance perspective, a lower thickness of 0.4 mm ensures that the adhesive film 100 possesses sufficient mechanical strength, preventing excessive deformation or damage under the weight of the battery cell and the pressure during the printing process, thus maintaining the integrity and stability of the adhesive film 100. An upper thickness of 0.6 mm prevents the adhesive film 100 from becoming too thick and heavy, which would affect its flexibility and adhesion, ensuring that the adhesive film 100 can tightly adhere to the support platform 202 of the printing device 200 and the battery cell, meeting the precision operation requirements of the printing process.

[0058] It is understandable that a moderate thickness helps to balance the durability and cost of the film 100. Too thick a film will increase material costs and may reduce printing accuracy, while too thin a film may lead to frequent replacements and increase maintenance costs.

[0059] In some embodiments, the surface functional layer 102 is a nano-ceramic coating. The nano-ceramic material has high hardness and good chemical stability, which can form a strong protective barrier on the surface of the film 100, effectively resisting the erosion of ink, solvent and paste during the printing process, reducing surface scratches and wear, thereby extending the service life of the film 100 and ensuring the stability of printing quality.

[0060] In addition, the non-stick properties of the nano-ceramic coating help prevent ink and paste residues from remaining on the surface of the film 100, making post-printing cleaning easier, reducing cleaning time and material consumption, and improving production efficiency.

[0061] Optionally, the nanoparticle size of the nano-ceramic coating can be 20-100 nm.

[0062] In some embodiments, the substrate layer 101 is a modified polyurethane or a thermoplastic elastomer. Modified polyurethane has excellent elasticity and toughness, which can buffer the impact force during the printing process to a certain extent, protect the battery cells from damage, and maintain the shape and dimensional stability of the film 100 itself.

[0063] Thermoplastic elastomers combine the durability of plastics with the elasticity of rubber, exhibiting excellent low-temperature and high-temperature resistance. This allows them to adapt to various printing environments, ensuring the film 100 operates normally over a wide temperature range. Furthermore, both materials possess good processability, facilitating the molding and manufacturing of the film 100 and promoting large-scale production.

[0064] In some embodiments, the adhesive layer 103 is a pressure-sensitive adhesive. Pressure-sensitive adhesive has high tack at room temperature, enabling rapid bonding to the support platform 202 of the printing apparatus 200 without additional heating or curing, significantly improving production efficiency. The pressure-sensitive adhesive layer 103 ensures no residue after peeling, allows for repeated application ≥50 times, and exhibits adhesion attenuation ≤10%.

[0065] Meanwhile, the pressure-sensitive adhesive has moderate bonding strength, ensuring stable adhesion of the adhesive film 100 during the printing process while allowing for easy peeling when the film 100 needs to be replaced or cleaned, without damaging the surface of the carrier platform 202 or leaving difficult-to-clean adhesive residue. This improves the reusability of the adhesive film 100, reduces production costs, and minimizes resource waste.

[0066] It should be noted that the thickness 'a' of the adhesive film 100, the specific materials of the surface functional layer 102, the substrate layer 101, and the adhesive layer 103 can be selectively set. For example, the thickness of the adhesive film 100 can be 0.5 mm, the surface functional layer 102 can be a nano-ceramic coating, the adhesive layer 103 can be a pressure-sensitive adhesive, and the substrate 101 can be a modified polyurethane. Alternatively, only the surface functional layer 102 can be a nano-ceramic coating, while the substrate layer 101 and the adhesive layer 103 can be made of other materials, such as bio-based plastics and epoxy resin adhesives.

[0067] Optionally, specific solvent-resistant components (such as fluorosiloxane copolymers) may be added to the surface functional layer 102 and the substrate layer 101. After being immersed in ethanol or UV ink mixture for twenty-four hours, the swelling rate of the surface functional layer 102 and the substrate layer 101 is ≤1%; the temperature resistance range is -20℃ to 200℃.

[0068] Please see Figure 3 , Figure 3 This is a schematic diagram of the printing apparatus 200 provided in the embodiments of this application. The second aspect of this utility model discloses a printing apparatus 200, including: a support; a support platform 202 disposed on the support, the support platform 202 having a support surface; an adhesive film 100 as described in the first aspect, the adhesive layer 103 of the adhesive film 100 being bonded to the support surface, and the surface functional layer 102 of the adhesive film 100 being used to support battery cells; and a cleaning mechanism 203 disposed on the support, the cleaning mechanism 203 being used to clean the surface functional layer 102 of the adhesive film 100. The specific structure, composition, and working principle of the adhesive film 100 have been described in detail in the foregoing embodiments and will not be repeated here.

[0069] As the supporting frame of the entire printing apparatus 200, the bracket bears the weight of other components, ensuring the stability and rigidity of the entire apparatus. The bracket provides a solid mounting foundation for components such as the support platform 202 and the cleaning mechanism 203, enabling the printing process to proceed in a stable environment.

[0070] The support platform 202 is mounted on the bracket and has a support surface for placing the solar cells. The support platform 202 ensures that the solar cells can be stably placed on the support surface, providing a stable foundation for subsequent printing operations. Optionally, the size and shape of the support platform 202 can be designed according to actual production needs to accommodate solar cells of different sizes.

[0071] The adhesive film 100 is tightly bonded to the bearing surface of the carrier platform 202 via the adhesive layer 103, ensuring that the adhesive film 100 will not shift or fall off during the printing process. The surface functional layer 102 of the adhesive film 100 is directly used to support the battery cells. The surface functional layer 102 of the adhesive film 100 can be a nano-ceramic coating. This coating not only has good wear resistance and non-stick properties, effectively resisting the erosion of ink, solvents and pastes during the printing process and extending the service life of the adhesive film 100, but also makes the post-printing cleaning work more convenient, reducing cleaning time and material consumption.

[0072] The cleaning mechanism 203 is mounted on the support and is used to clean the surface functional layer 102 of the adhesive film 100. The cleaning mechanism 203 ensures that the adhesive film 100 remains clean after multiple uses, maintaining stable performance and thus guaranteeing consistent printing quality. Optionally, the design of the cleaning mechanism 203 can be optimized according to the material and contamination characteristics of the adhesive film 100 to achieve efficient cleaning while avoiding damage to the adhesive film 100.

[0073] Thus, the printing apparatus 200 disclosed in this utility model achieves efficient printing through the synergistic effect of its various components. The support provides stable support, the carrier platform 202 provides a flat carrier surface for the battery cells, and the adhesive film 100 is placed on the carrier surface to support the battery cells, ensuring the smooth progress of the battery cell printing process and improving printing quality. The cleaning mechanism 203 can clean the surface functional layer 102 of the adhesive film 100, ensuring the cleanliness and reusability of the adhesive film 100. This printing apparatus 200, through the cleaning mechanism 203 cleaning the adhesive film 100, ensures the reusability of the adhesive film 100, reduces production costs, and minimizes resource waste and environmental pollution.

[0074] Please see Figure 3 In some embodiments, the adhesive film 100 is disposed around the circumferential outer side of the support platform 202, and the support surface has a support station A for bonding the adhesive layer 103; the printing apparatus 200 further includes a driving assembly connected to the adhesive film 100, for driving the adhesive film 100 to rotate around the support platform 202 along a preset closed trajectory, so that the adhesive film 100 is bonded to the support station A in turn at different circumferential locations, wherein the support station A is located on the preset closed trajectory.

[0075] The adhesive film 100 is disposed around the circumferential outer side of the carrier platform 202, so that the adhesive film 100 can form a closed annular trajectory on the outer side of the carrier platform 202. The carrier surface has a carrier station A for bonding the adhesive layer 103, and the carrier station A is located on the preset closed trajectory. The printing apparatus 200 also includes a drive assembly connected to the adhesive film 100, which drives the adhesive film 100 to rotate around the carrier platform 202 along the preset closed trajectory, so that the adhesive film 100 is bonded to the carrier station A in turn at different parts of the circumference, thereby realizing the recycling of the adhesive film 100 and improving the utilization rate of the adhesive film 100.

[0076] It is understandable that when a portion of the film 100 completes its printing task at the carrier station A and needs cleaning or replacement, the drive assembly can move the film 100 along a closed trajectory, displacing that portion out of the carrier station A, while simultaneously bringing another clean portion of the film 100 into the carrier station A to continue the printing operation. This cyclical method reduces the frequency of film 100 replacement, lowers production costs, and also reduces downtime caused by film 100 replacement, thereby improving production efficiency.

[0077] Furthermore, this design helps maintain the stable performance of the film 100. By periodically moving the film 100, all parts are subjected to uniform stress and wear, avoiding performance degradation caused by prolonged use of the same part. Simultaneously, when a part of the film 100 becomes contaminated or damaged, that part can be moved to a non-working area for treatment without affecting the continuity of the entire printing process.

[0078] Please see Figure 3 In some embodiments, the driving assembly further includes a rotating member 204 and a driving member. The rotating member 204 is rotatably disposed on the support and supported on the adhesive film 100 to restrict the adhesive film 100 to a preset closed trajectory. A portion of the outer surface of the rotating member 204 can be bonded to the adhesive layer 103 of the adhesive film 100 to drive the adhesive film 100 to rotate when the rotating member 204 rotates. The driving member is connected to the rotating member 204 and is used to drive the rotating member 204 to rotate.

[0079] The rotating component 204 is rotatably mounted on the support and supports the adhesive film 100, allowing the adhesive film 100 to move along a preset closed trajectory. When the driving component drives the rotating component 204 to rotate, the adhesive bonding effect between the rotating component 204 and the adhesive layer 103 of the adhesive film 100 causes the adhesive film 100 to rotate synchronously. In this way, different parts of the adhesive film 100 can be sequentially bonded to the bearing station A of the carrier table 202, realizing the automatic switching of the adhesive film 100. This achieves automated recycling of the adhesive film 100, reduces manual intervention, and improves the automation level and production efficiency of the printing process.

[0080] Compared to the traditional method of replacing the adhesive film 100, the rotating component 204 is driven by a drive component, allowing the adhesive film 100 to automatically switch between different parts and bond with the bearing station A. This not only reduces downtime caused by replacing or cleaning the adhesive film 100, but also improves production efficiency, extends the service life of the adhesive film 100, and reduces production costs.

[0081] In addition, the bonding effect between the rotating component 204 and the adhesive layer 103 of the adhesive film 100 ensures the stability of the adhesive film 100 during rotation, preventing displacement or loosening of the adhesive film 100 during switching, thereby ensuring the stability of printing quality.

[0082] Please see Figure 3 In some embodiments, a standby station B is provided below the support platform 202. The standby station B is located on a preset closed trajectory. The cleaning mechanism 203 is arranged opposite to the standby station B so that the part of the cleaning film 100 rotates to the standby station B. In the vertical direction, both the standby station B and the cleaning mechanism 203 are located below the support station A.

[0083] It is understandable that by setting up a standby station B below the carrier platform 202, and setting the standby station B and the cleaning mechanism 203 opposite to each other, and both located below the carrier station A, efficient management and maintenance of the adhesive film 100 are achieved.

[0084] Specifically, after the printing process is completed, the used portion of the film 100 can be transferred to standby station B. At this station, the cleaning mechanism 203 cleans the used portion of the film 100, removing ink, solvents, and other contaminants that may have adhered during the printing process. The cleaned portion of the film 100 can then be temporarily placed in standby station B, awaiting its next use.

[0085] Setting up a standby station B below the carrier platform 202 improves the efficiency and capacity of the entire printing apparatus 200. Since the cleaning and standby processes of the film 100 can be carried out below the carrier platform 202, the carrier station A of the carrier platform 202 can continuously perform printing operations without waiting for the film 100 to be cleaned and replaced, thereby reducing downtime and improving production efficiency.

[0086] Secondly, this design helps maintain the cleanliness and performance of the film 100. By cleaning the used parts of the film 100 in a timely manner, contaminants can be effectively removed, preventing their accumulation on the film 100, thereby extending its service life and ensuring the stability of printing quality.

[0087] Furthermore, this layout optimizes space utilization. By placing the standby station B and the cleaning mechanism 203 below the support platform 202, vertical space is utilized efficiently, making the overall layout of the printing device 200 more compact and reducing its floor space.

[0088] Please see Figure 3 In some embodiments, the printing apparatus 200 includes: a wiping member 2031, which is rotatably disposed on a support, and a portion of the outer surface of the wiping member 2031 is configured to roll into contact with the surface functional layer 102 of the adhesive film 100 located at the standby station B to wipe the surface functional layer 102; and a cleaning tank 2032 disposed on the support, wherein a cleaning liquid is disposed in the cleaning tank 2032, and at least a portion of the wiping member 2031 is immersed in the cleaning liquid.

[0089] It is understood that by providing a wiping member 2031 and a cleaning tank 2032 in the printing apparatus 200, the surface functional layer 102 of the adhesive film 100 is cleaned. The wiping member 2031 is rotatably mounted on a support, and a portion of the outer surface of the wiping member 2031 rolls into contact with the surface functional layer 102 of the adhesive film 100 located at the standby station B to wipe the surface functional layer 102. The cleaning tank 2032 is filled with cleaning fluid, and at least a portion of the wiping member 2031 is immersed in the cleaning fluid.

[0090] During rotation, the wiping component 2031 continuously carries cleaning fluid from the cleaning tank 2032, evenly wiping the surface of the adhesive film 100 to effectively remove ink, solvents, and other contaminants, thus improving cleaning efficiency and effectiveness. The rolling contact of the wiping component 2031 covers every part of the adhesive film 100 surface, ensuring uniform and thorough cleaning. Simultaneously, because the wiping component 2031 is partially immersed in the cleaning fluid, it continuously provides sufficient cleaning agent for the wiping process, avoiding the problems of uneven or insufficient cleaning agent distribution that may occur in traditional cleaning methods.

[0091] At the same time, this design helps to extend the service life of the adhesive film 100. By removing contaminants from the surface of the adhesive film 100 in a timely and effective manner, surface damage caused by long-term contaminant adhesion is reduced, thereby maintaining the stable performance of the adhesive film 100.

[0092] Optionally, the wiping element 2031 can be a nano-sponge disposed on a rotatable shaft, so that the surface of the nano-sponge comes into contact with the surface functional layer 102 of the adhesive film 100, thereby performing a rolling wipe on the surface functional layer 102. The nano-sponge can absorb and remove contaminants such as ink, solvent, and dust from the surface functional layer 102. Furthermore, the nano-sponge is soft and will not scratch the surface functional layer 102 of the adhesive film 100, effectively protecting the performance of the adhesive film 100. In addition, the nano-sponge has good liquid absorption, can fully absorb cleaning liquid and distribute it evenly on the surface of the adhesive film 100, ensuring cleaning effect and reducing cleaning liquid waste.

[0093] Optionally, the wiping element 2031 can be connected to a separate wiping drive motor, thereby driving the wiping element 2031 to rotate. The wiping element 2031 can also be driven to rotate by the adhesive film 100 by the friction of its surface, thereby saving power and achieving cleaning of the surface functional layer 102.

[0094] Please see Figure 3 In some embodiments, the printing apparatus 200 further includes a blower 205, which is disposed on the side of the adhesive film 100 away from the bearing station A along its own rotation direction, and the blower nozzle of the blower 205 faces the surface functional layer 102 of the adhesive film 100. The blower 205 is used to blow dry airflow onto the adhesive film 100.

[0095] By incorporating a blower 205 in the printing apparatus 200, rapid drying of the functional layer 102 on the surface of the adhesive film 100 is achieved. The blower 205 is positioned on the side of the adhesive film 100 away from the bearing station A along its own rotation direction, with its nozzle facing the functional layer 102 on the surface of the adhesive film 100, to blow a drying airflow onto the adhesive film 100. This allows residual moisture or cleaning solution on the surface of the adhesive film 100 to be dried promptly after cleaning, preventing it from affecting subsequent printing processes.

[0096] If the film 100 is not dried in time after cleaning, the moisture on its surface may cause problems such as ink diffusion or blurry printing during subsequent printing processes. The blower 205 can quickly remove the moisture from the surface of the film 100, ensuring that the film 100 is dry before entering the carrier station A, thereby ensuring printing quality.

[0097] Secondly, timely drying reduces the potential for chemical reactions or microbial growth on the surface of the adhesive film 100 due to residual moisture, thus preventing damage to the material. Simultaneously, this layout optimizes the cleaning process. Positioning the blower 205 on the side of the adhesive film 100 away from the bearing station A in its rotation direction allows the adhesive film 100 to be dried immediately after passing through the cleaning mechanism 203, creating an efficient cleaning and drying process. This reduces the time the adhesive film 100 remains in a wet state, lowering the risk of contamination.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A film for use in a printing apparatus, characterized in that, The adhesive film includes: Substrate layer; A surface functional layer is disposed on the first surface of the substrate layer along the thickness direction of the substrate layer, and the surface functional layer is an ink-resistant layer; An adhesive layer is disposed on a second surface of the substrate layer along the thickness direction of the substrate layer. The adhesive layer is used to bond with the support platform of the printing apparatus, wherein the second surface and the first surface are disposed opposite to each other.

2. The adhesive film according to claim 1, characterized in that, The adhesive film also includes: Multiple vent holes are provided, each of which penetrates the adhesive film along its thickness direction. The multiple vent holes are spaced apart along the length direction of the adhesive film and also spaced apart along the width direction of the adhesive film.

3. The adhesive film according to claim 1, characterized in that, The adhesive film also includes: A dustproof layer is provided on the surface of the surface functional layer opposite to the substrate layer along the thickness direction of the adhesive film, and the dustproof layer is used to isolate the surface functional layer from external dust.

4. The adhesive film according to claim 1, characterized in that, The thickness 'a' of the adhesive film satisfies 0.4mm ≤ a ≤ 0.6mm; and / or The surface functional layer is a nano-ceramic coating; and / or The substrate layer is a modified polyurethane or thermoplastic elastomer; and / or The adhesive layer is a pressure-sensitive adhesive.

5. A printing apparatus, characterized in that, The printing apparatus includes: support; A support platform is disposed on the bracket, and the support platform has a bearing surface; The adhesive film as described in any one of claims 1-4, wherein the adhesive layer of the adhesive film is bonded to the bearing surface, and the surface functional layer of the adhesive film is used to support the battery cell; A cleaning mechanism is provided on the support, and the cleaning mechanism is used to clean the surface functional layer of the adhesive film.

6. The printing apparatus according to claim 5, characterized in that, The adhesive film is wrapped around the circumferential outer side of the support platform, and the support surface has a support station for bonding the adhesive layer; The printing apparatus further includes a driving component connected to the adhesive film, which drives the adhesive film to rotate around the carrier platform along a preset closed trajectory, so that the adhesive film is bonded to the carrier station in turn at different parts in the circumferential direction, wherein the carrier station is located on the preset closed trajectory.

7. The printing apparatus according to claim 6, characterized in that, The driving component also includes: A rotating component is rotatably disposed on the bracket and supported on the adhesive film to restrict the adhesive film to the preset closed trajectory. A portion of the outer surface of the rotating component can be bonded to the adhesive layer of the adhesive film to drive the adhesive film to rotate when the rotating component rotates. A driving component is connected to the rotating component, and the driving component is used to drive the rotating component to rotate.

8. The printing apparatus according to claim 6, characterized in that, A standby station is provided below the support platform. The standby station is located on the preset closed trajectory. The cleaning mechanism and the standby station are arranged opposite each other to clean the part of the adhesive film that has rotated to the standby station. In the vertical direction, both the standby station and the cleaning mechanism are located below the bearing station.

9. The printing apparatus according to claim 8, characterized in that, The cleaning mechanism includes: A wiping member, rotatably disposed on the bracket, wherein a portion of the outer surface of the wiping member is configured to roll into contact with the surface functional layer of the adhesive film located in the standby position, so as to wipe the surface functional layer; A cleaning tank is provided on the bracket, and the cleaning tank is filled with cleaning fluid, with at least a portion of the wiping components immersed in the cleaning fluid.

10. The printing apparatus according to claim 6, characterized in that, The printing apparatus also includes: A blower is disposed on the side of the adhesive film away from the bearing station along its own rotation direction, and the blower nozzle faces the surface functional layer of the adhesive film. The blower is used to blow dry airflow onto the adhesive film.

Images