Coating and glue scraping device for release film production

Abstract

The invention discloses a coating and glue scraping device for release film production, and relates to the technical field of release film production equipment.The coating and glue scraping device comprises a base, a first winding assembly, a coating assembly, a glue scraping assembly and a second winding assembly are sequentially arranged on the base according to the conveying path of a release film, a driving box is arranged on one side of the base, and multiple sets of driving parts are arranged in the driving box; a plurality of driving parts supply energy to a plurality of structures on a base, a first winding assembly comprises a first roller and a second roller which are arranged up and down, and a first groove is formed in the side wall area of the base, so that a specific scraper blade can be quickly started or replaced according to production requirements, the wire replacement debugging time is greatly shortened, and the device is particularly suitable for small-batch customized production; by means of the design, the problems that due to the fact that a traditional glue scraping assembly is cut at a time, coatings are uneven, and adaptability is poor are effectively solved, and double optimization of production efficiency and product quality is considered.

Description

Technical Field

[0001] This invention relates to the field of release film production equipment technology, specifically to a coating and scraping device for release film production. Background Technology

[0002] Release film is a key material in the electronics and packaging industries, and the stability of its coating process directly determines product quality. The coating scraper is a core component for controlling the coating thickness and uniformity. Although commonly used scraper devices in existing technologies can achieve basic coating functions, they generally suffer from critical defects such as insufficient dynamic adaptability and flexible bonding. A single scraper is prone to local scratches or sagging, requiring frequent manual shutdowns for adjustments, making it difficult to meet the demands of high-precision and high-efficiency production. Therefore, it is essential to design a coating scraper device for release film production. Summary of the Invention

[0003] The purpose of this invention is to provide a coating and scraping device for producing release film, so as to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a coating and scraping device for release film production, comprising a base, on which a first winding assembly, a coating assembly, a scraping assembly and a second winding assembly are sequentially arranged according to the release film conveying path; a drive box is provided on one side of the base, and multiple sets of drive components are provided in the drive box to supply power to multiple structures on the base; the first winding assembly includes a first roller and a second roller arranged vertically; and a first groove is provided in the side wall area of ​​the base.

[0005] According to the above technical solution, one end of the first roller is mounted in the first groove, and the other end is fixedly connected to the output end of a drive component in the drive box.

[0006] According to the above technical solution, a guide rail is provided on the side wall area of ​​the base, a metal frame is slidably connected on the guide rail, a second groove is provided on the metal frame, one end bearing of the second roller is installed in the second groove, and the other end is fixedly connected to the output end of the external drive structure.

[0007] According to the above technical solution, the first roller, the second roller, the third roller, the first calibration rod, the second calibration rod, the fourth calibration rod, the fourth roller, the fifth roller, and the sixth roller are mounted on the side wall of the base. The first roller, the second roller, the third roller, the first calibration rod, the second calibration rod, the fourth calibration rod, the fourth roller, the fifth roller, and the sixth roller cooperate with the first roller to form the first release film conveying path.

[0008] According to the above technical solution, the twelfth roller, the seventh roller, the eighth roller, the ninth roller, the tenth roller, the third calibration rod, and the eleventh roller are installed on the bearings on the side wall of the base. The twelfth roller, the seventh roller, the eighth roller, the ninth roller, the tenth roller, the third calibration rod, the eleventh roller, the first calibration rod, the second calibration rod, the fourth calibration rod, the fourth roller, the fifth roller, and the sixth roller cooperate with the second roller to form the second release film conveying path.

[0009] According to the above technical solution, the coating assembly includes a support frame with bearings mounted on the side wall of the base, a coating box mounted on the support frame, and several coating holes provided on the surface of the coating box.

[0010] According to the above technical solution, a push rod assembly is mounted on the side wall of the base using a bearing, and the pushing part of the push rod assembly is connected to the support frame.

[0011] According to the above technical solution, the adhesive scraping assembly includes four uprights set on the base, a first slide rail is installed on the side wall of the uprights, a support plate is slidably installed on the first slide rail, and multiple scraping boxes are set at the bottom of the support plate.

[0012] According to the above technical solution, a second slide rail is installed inside the scraper box, and a scraper is slidably installed on the second slide rail. The scrapers in each scraper box are different.

[0013] According to the above technical solution, the second winding assembly includes a third groove disposed on the side wall of the base, a bearing in the third groove is connected to one end of the third roller, and the other end of the third roller is connected to the output end of an external drive mechanism.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention, by setting a scraper box, can quickly activate or replace specific scrapers according to production needs, greatly reducing the time for line changeover and debugging. It is particularly suitable for small-batch customized production, improving production capacity flexibility and equipment utilization. This design effectively solves the problems of uneven coating and poor adaptability caused by the one-cut traditional scraper assembly, and takes into account both production efficiency and product quality optimization. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is the invention Figure 1 Enlarged structural diagram of region A in the middle; Figure 3 This is a schematic diagram of the first winding assembly of the present invention; Figure 4This is a schematic diagram of the push rod assembly of the present invention; Figure 5 This is a schematic diagram of the scraper box of the present invention; In the diagram: 1. Base; 2. First roller; 3. Second roller; 4. First groove; 5. Drive box; 6. Guide rail; 7. Metal frame; 8. Second groove; 9. External drive structure; 10. First roller; 11. Second roller; 12. Third roller; 13. First calibration rod; 14. Second calibration rod; 15. Fourth roller; 16. Fifth roller; 17. Sixth roller; 18. Seventh roller; 19. Eighth roller; 2 0. Ninth roller; 21. Third calibration rod; 22. Eleventh roller; 23. Twelfth roller; 24. Fourth calibration rod; 25. Support frame; 26. Coating box; 27. Coating hole; 28. Push rod assembly; 29. ​​Upright rod; 30. First slide rail; 31. Support plate; 32. Scraper box; 33. Second slide rail; 34. Scraper; 35. Third groove; 36. Third roller; 37. Drive mechanism; 38. Tenth roller. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figure 1-5 The present invention provides a technical solution: a coating and scraping device for release film production, comprising a base 1, which serves as the main support structure of the equipment and is cast from a high-rigidity material, possessing good stability and shock absorption performance. A first winding assembly, a coating assembly, a scraping assembly, and a second winding assembly are sequentially arranged on the base 1 according to the release film conveying path, forming a complete coating processing system. A drive box 5 is installed on one side of the base 1, and multiple sets of drive components, including servo motors, reducers, and transmission shafts, are assembled inside the drive box 5. A precision control system coordinates the multiple sets of drive components to provide power to multiple functional structures on the base 1.

[0018] The first winding assembly includes a first roller 2 and a second roller 3 arranged vertically. A first groove 4 is machined into the side wall area of ​​the base 1. One end of the first roller 2 is mounted in the first groove 4 via a high-precision bearing, and the other end is fixedly connected to the output end of a drive component in the drive box 5 via a coupling to achieve stable transmission. A linear guide rail 6 is also provided in the same side wall area of ​​the base 1. A metal frame 7 is slidably connected to the guide rail 6. The metal frame 7 is made of lightweight alloy material and has high strength and wear resistance. A second groove 8 is formed on the metal frame 7, and one end of the second roller 3 is mounted in the second groove 8 via a self-aligning bearing. The other end is fixedly connected to the output end of the external drive structure 9. The equipment control system can drive the metal frame 7 to move up and down precisely along the guide rail 6, thereby driving the second roller 3 to adjust its position. This lifting mechanism can finely adjust the substrate tension in real time, and its control accuracy is high. When the substrate has abnormal tension due to batch differences, changes in ambient temperature or fluctuations in material properties, the height of the second roller 3 can be adjusted in real time to effectively avoid coating sagging caused by the substrate being too loose or stretching damage caused by the substrate being too tight, ensuring the uniformity of coating thickness and significantly reducing the scrap rate. It is especially suitable for optical film coating processes with extremely high requirements for tension control.

[0019] On the side wall of the base 1, a first roller 10, a second roller 11, a third roller 12, a first calibration rod 13, a second calibration rod 14, a fourth calibration rod 24, a fourth roller 15, a fifth roller 16, and a sixth roller 17 are also installed via a bearing system. The surfaces of these rollers and calibration rods are all hardened and finely polished to effectively reduce friction and film surface scratches. The first roller 10, the second roller 11, the third roller 12, the first calibration rod 13, the second calibration rod 14, the fourth calibration rod 24, the fourth roller 15, the fifth roller 16, and the sixth roller 17 cooperate with the first roller 2 to form the first release film conveying path.

[0020] The specific process of the first release film conveying path is as follows: The release film is rolled out from the first roller 2, first conveyed below the first roller 10, then conveyed above the second roller 11, then passes under the third roller 12, and then passes above the first calibration rod 13, the second calibration rod 14 and the fourth calibration rod 24 for calibration and tension leveling. Finally, it is conveyed alternately between the fourth roller 15, the fifth roller 16 and the sixth roller 17, and finally enters the coating assembly. This path uses the fixed first roller 2 as the unwinding mechanism, which is suitable for release film substrates of conventional thickness and stable tension. It has the characteristics of simple structure and stable operation, ensuring high reliability of the basic conveying process.

[0021] In addition, the twelfth roller 23, the seventh roller 18, the eighth roller 19, the ninth roller 20, the tenth roller 38, the third calibration rod 21, and the eleventh roller 22 are also installed on the side wall of the base 1 via bearings. The twelfth roller 23, the seventh roller 18, the eighth roller 19, the ninth roller 20, the tenth roller 38, the third calibration rod 21, and the eleventh roller 22 cooperate with the original first calibration rod 13, the second calibration rod 14, the fourth calibration rod 24, the fourth roller 15, the fifth roller 16, the sixth roller 17, and the liftable second roller 3 to form the second release film conveying path.

[0022] The workflow of the second release film conveying path is as follows: The release film is rolled out from the second roller 3, first conveyed above the twelfth roller 23, then below the seventh roller 18, and then successively passes above the eighth roller 19, the ninth roller 20 and the tenth roller 38. It then passes below the third calibration rod 21 for preliminary calibration, and is then guided above the eleventh roller 22. It enters between the first calibration rod 13 and the second calibration rod 14 for precise tension adjustment, and is then conveyed above the fourth calibration rod 24. Finally, it is conveyed to the coating assembly through the staggered conveying of the fourth roller 15, the fifth roller 16 and the sixth roller 17. This path allows for flexible adjustment of the substrate tension through the liftable second roller 3, and is particularly suitable for thin, highly elastic or special substrates with large tension fluctuations. It effectively solves the problem that a single fixed path cannot adapt to multiple specifications of substrates, and significantly improves the versatility and process adaptability of the equipment.

[0023] Two conveying paths can be quickly switched according to production needs. Operation is simple and requires no disassembly or replacement of core components. For different coating process requirements, such as high-viscosity adhesives requiring higher tension to prevent overflow and low-viscosity adhesives requiring lower tension to avoid stringing, the substrate tension can be adjusted simply by switching the conveying path through the control system. This significantly reduces downtime for debugging and improves production continuity and efficiency. The fixed roller path ensures stable output for the production of conventional products, while the liftable roller path provides flexible tension compensation capabilities. This not only meets the needs of large-scale stable production but also flexibly addresses the special process requirements of small-batch, multi-variety customized products. It achieves dual optimization of equipment stability and flexibility. These advantages, through differentiated structural design, effectively solve the limitations of traditional single conveying paths in terms of substrate adaptability, tension control accuracy, and process switching efficiency, significantly improving the overall performance and market competitiveness of the equipment.

[0024] The coating assembly includes a support frame 25 mounted on the side wall of the base 1 via bearings. The support frame 25 has a hinged structure and can rotate around an axis. A coating box 26 is firmly mounted on the support frame 25. The coating box 26 has an adhesive chamber inside, and its surface is evenly arranged with several precision microporous coating holes 27 for uniformly coating the adhesive. A push rod assembly 28 is mounted on the side wall of the base 1 via bearings. The pushing part of the push rod assembly 28 is connected to the support frame 25. The equipment control system drives the push rod assembly 28 to perform precise telescopic movements, thereby driving the support frame 25 to rotate around an axis, thereby adjusting the distance between the coating box 26 and the release film, controlling the coating time and the film thickness, and adapting to the requirements of coating liquids with different viscosities and solid contents. The coating box 26 is filled with a medium. The pump medium structure is a prior art structure and will not be described in detail here.

[0025] The coating assembly includes four vertically mounted poles 29 on a base 1. High-precision first slide rails 30 are installed on the side walls of the poles 29. A support plate 31 is slidably mounted on the first slide rails 30. Multiple independently controlled scraper boxes 32 are fixedly mounted at the bottom of the support plate 31. Each scraper box 32 contains a second slide rail 33, on which a scraper 34 is slidably mounted. The scrapers 34 in different scraper boxes 32 are designed with different materials, hardness, and blade shapes according to their functional requirements. Each scraper 34 in each scraper box 32 can be independently adjusted via the second slide rail 33. This allows for individual adjustment of the contact gap, pressure, or angle between a single scraper and the film surface to address localized unevenness during coating, achieving localized correction and significantly improving coating uniformity and product yield. The inconsistent scrapers 34 can form a step-by-step scraping logic. For example, a hard, wear-resistant scraper can be used to quickly remove excess adhesive first, and then a flexible, elastic scraper can be used to finely trim the surface, reducing scratches and improving surface quality. Alternatively, a special blade scraper can be used to handle the accumulation problem that easily occurs with high-viscosity adhesives. This design not only improves scraping efficiency but also effectively reduces coating defects such as sagging and particles. The combination of multiple scraper boxes 32 and differentiated scrapers 34 can quickly activate or replace specific scrapers according to production needs, greatly reducing changeover and debugging time. It is particularly suitable for small-batch customized production, improving capacity flexibility and equipment utilization. This design effectively solves the problems of uneven coating and poor adaptability caused by the one-cut traditional scraping components, and takes into account both production efficiency and product quality optimization.

[0026] The second winding assembly includes a third groove 35 disposed on the side wall of the base 1. One end of the third roller 36 is connected to the third groove 35 by a heavy-duty bearing. The other end of the third roller 36 is connected to the output end of an external drive mechanism 37 through a transmission mechanism. The equipment control system drives the drive mechanism 37 to run, causing the third roller 36 to rotate at a uniform speed, so that the third roller 36 cooperates with the first roller 2 or the second roller 3 to realize the synchronous delivery and winding of the release film, and complete the winding operation of the entire coating process.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A coating and scraping device for release film production, comprising a base (1), characterized in that: The base (1) is provided with a first winding assembly, a coating assembly, a scraping assembly and a second winding assembly in sequence according to the delivery path of the release film. A drive box (5) is provided on one side of the base (1). Multiple sets of drive components are provided in the drive box (5) to provide power to multiple structures on the base (1). The first winding assembly includes a first roller (2) and a second roller (3) arranged vertically. A first groove (4) is provided in the side wall area of ​​the base (1).

2. The coating and scraping device for release film production according to claim 1, characterized in that: One end of the first roller (2) is mounted in the first groove (4) and the other end is fixedly connected to the output end of a drive component in the drive box (5).

3. The coating and scraping device for release film production according to claim 2, characterized in that: The base (1) has a guide rail (6) on its side wall area. A metal frame (7) is slidably connected to the guide rail (6). A second groove (8) is provided on the metal frame (7). One end bearing of the second roller (3) is installed in the second groove (8), and the other end is fixedly connected to the output end of the external drive structure (9).

4. The coating and scraping device for release film production according to claim 3, characterized in that: The base (1) has a bearing on its side wall to install a first roller (10), a second roller (11), a third roller (12), a first calibration rod (13), a second calibration rod (14), a fourth calibration rod (24), a fourth roller (15), a fifth roller (16), and a sixth roller (17). The first roller (10), the second roller (11), the third roller (12), the first calibration rod (13), the second calibration rod (14), the fourth calibration rod (24), the fourth roller (15), the fifth roller (16), and the sixth roller (17) cooperate with the first roller (2) to form the first release film conveying path.

5. The coating and scraping device for release film production according to claim 4, characterized in that: The twelfth roller (23), the seventh roller (18), the eighth roller (19), the ninth roller (20), the tenth roller (38), the third calibration rod (21), and the eleventh roller (22) are mounted on the side wall of the base (1). The twelfth roller (23), the seventh roller (18), the eighth roller (19), the ninth roller (20), the tenth roller (38), the third calibration rod (21), the eleventh roller (22), the first calibration rod (13), the second calibration rod (14), the fourth calibration rod (24), the fourth roller (15), the fifth roller (16), and the sixth roller (17) cooperate with the second roller (3) to form the second release film conveying path.

6. The coating and scraping device for release film production according to claim 5, characterized in that: The coating assembly includes a support frame (25) with bearings mounted on the side wall of the base (1), a coating box (26) is mounted on the support frame (25), and a plurality of coating holes (27) are provided on the surface of the coating box (26).

7. The coating and scraping device for release film production according to claim 6, characterized in that: A push rod assembly (28) is mounted on the side wall of the base (1) by a bearing, and the pushing part of the push rod assembly (28) is connected to the support frame (25).

8. The coating and scraping device for release film production according to claim 7, characterized in that: The scraping assembly includes four uprights (29) set on the base (1), a first slide rail (30) is installed on the side wall of the uprights (29), a support plate (31) is slidably installed on the first slide rail (30), and a plurality of scraping boxes (32) are set at the bottom of the support plate (31).

9. A coating and scraping device for release film production according to claim 8, characterized in that: The scraper box (32) is equipped with a second slide rail (33), and a scraper (34) is slidably installed on the second slide rail (33). The scrapers (34) in each scraper box (32) are different.

10. A coating and scraping device for release film production according to claim 9, characterized in that: The second winding assembly includes a third groove (35) disposed on the side wall of the base (1), wherein a bearing is connected to one end of a third roller (36) in the third groove (35), and the other end of the third roller (36) is connected to the output end of an external drive mechanism (37).

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