A multi-layer metal foil material gluing composite machine

Abstract

The application belongs to the field of metal foil processing equipment and provides a multi-layer metal foil gluing and compounding machine, which comprises a wallboard, a unwinding assembly, a compounding roller assembly and a coating assembly. The unwinding assembly comprises a first unwinding disc, a second unwinding disc and a third unwinding disc. The compounding roller assembly comprises a driving roller and a driven roller, and the driving roller and the driven roller cooperate to form a compounding gap. The coating assembly comprises a glue disc with a top opening and a glue roller horizontally arranged above the glue disc and capable of taking glue from the glue disc. The coating assembly further comprises a glue uniformizing and metering roller and a gluing roller, both of which are parallel to the glue roller. The glue roller, the glue uniformizing and metering roller and the gluing roller are all rotatably installed, and the glue uniformizing and metering roller is separated from the glue roller and the gluing roller by a preset width. The coating assembly is symmetrically provided with two groups of the glue uniformizing and metering roller and the gluing roller relative to the compounding gap, and the gluing gap between the two groups of the gluing roller is opposite to the compounding gap.

Description

Technical Field

[0001] This application belongs to the field of metal foil processing equipment, and in particular relates to a multi-layer metal foil coating and laminating machine. Background Technology

[0002] The application of multilayer metal foils (such as aluminum foil, copper foil, and their composites) is becoming increasingly widespread in fields such as new energy, electronic components, and high-end packaging. The performance of these products is highly dependent on the quality of the interlayer lamination, requiring uniform adhesive layers, strong adhesion, and the absence of defects such as bubbles and wrinkles. Currently, the industry generally faces challenges in applying adhesives to multilayer metal foils, including unstable lamination quality and high stress in the finished product after winding, leading to significant deformation of the laminated foil during use. This makes it difficult to meet the stringent performance requirements of high-end applications. Therefore, it is necessary to solve these technical problems. Summary of the Invention

[0003] The purpose of this application is to provide a multilayer metal foil coating and laminating machine to solve the technical problem of low interlayer lamination quality of multilayer metal foil in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a multilayer metal foil coating and laminating machine, comprising:

[0005] Wall panels;

[0006] The unwinding assembly includes a first unwinding reel for unwinding intermediate foil, a second unwinding reel for unwinding face foil, and a third unwinding reel for unwinding bottom foil. The first unwinding reel, the second unwinding reel, and the third unwinding reel are rotatably mounted on the wall panel and are arranged in parallel at intervals.

[0007] The composite roller assembly includes an active roller and a passive roller that are rotatably mounted on the wall panel. The active roller and the passive roller are arranged in parallel and cooperate to form a composite gap that bonds the face foil and the bottom foil to the front and back sides of the intermediate foil.

[0008] The coating assembly includes a top-opening glue tray and a glue-carrying roller that is horizontally mounted above the glue tray and capable of taking glue from the glue tray. It also includes a glue-splitting metering roller and a glue-applying roller that are parallel to the glue-carrying roller. The glue-carrying roller, the glue-splitting metering roller, and the glue-applying roller are all rotatably mounted, and the glue-splitting metering roller is spaced apart from the glue-carrying roller and the glue-applying roller by a predetermined width. The coating assembly also has two sets of rollers symmetrically arranged about the composite gap, and the glue-applying rollers form a glue-applying gap directly opposite the composite gap.

[0009] Optionally, the multilayer metal foil coating and laminating machine further includes a support connected to the wall panel and a saddle-shaped bracket connected to the support and spaced apart from the wall panel.

[0010] Both ends of the glue roller, the glue metering roller, and the glue coating roller are connected to the saddle-shaped bracket.

[0011] The wall panel has a contoured cutout relative to the saddle-shaped bracket, which allows one of the saddle-shaped brackets near the wall panel to be exposed on the rear side of the wall panel.

[0012] Optionally, the multilayer metal foil coating and laminating machine further includes several sets of low-temperature plasma components capable of surface treatment;

[0013] The low-temperature plasma assembly is distributed at predetermined positions on the wall panel and is positioned directly opposite the surface of the target foil to be treated.

[0014] Optionally, the composite roller assembly further includes a slide block connected to the wall panel and a slider slidably connected to the slide block;

[0015] The sliding direction of the slider is perpendicular to the axial direction of the active roller, and the passive roller is mounted on the slider and can follow the slider to move closer to or away from the active roller.

[0016] Optionally, the composite roller assembly further includes an adjusting screw that is threaded to the slide block and axially parallel to the sliding direction of the slider;

[0017] The adjusting screw passes through the slide block and abuts against the slider.

[0018] Optionally, the multilayer metal foil coating laminating machine further includes a heating box capable of heating the foil, wherein the heating box and the coating assembly are distributed on opposite sides of the laminating gap.

[0019] Optionally, the multilayer metal foil coating and laminating machine further includes a winding reel for winding the laminated foil, the winding reel being rotatably mounted on the wall panel and spaced apart from the heating box.

[0020] Optionally, the multilayer metal foil coating and laminating machine further includes a traction roller assembly disposed between the take-up reel and the heating box.

[0021] Optionally, the multilayer metal foil coating and laminating machine also includes several servo motors;

[0022] The first unwind reel, the second unwind reel, the third unwind reel, and the take-up reel are each driven and connected to a servo motor and can be servo-driven.

[0023] The beneficial effects of the multilayer metal foil coating and laminating machine provided in this application are as follows: Compared with the prior art, in the multilayer metal foil coating and laminating machine provided in this application, each coating component quantitatively takes glue from the glue tray through a glue-carrying roller. Then, when the glue passes through the preset interval between the glue-carrying roller and the glue-equalizing metering roller, it is subjected to precise shearing and metering action, forming a glue film with uniform and stable thickness. This glue film is then transferred to the coating roller, and finally, through the coating gap formed between the two coating rollers, it is precisely and uniformly applied to both surfaces of the intermediate foil at its position. In addition, since the two coating components adopt a symmetrical saddle-shaped arrangement, this ensures that the process parameters (such as glue amount, pressure, and speed) of double-sided coating are completely consistent, avoiding the problems of inconsistent glue layer state and stress caused by uneven extrusion pressure on the intermediate foil due to time difference or parameter difference in step-by-step coating or asymmetrical coating. Based on the above principles, the multilayer metal foil coating and laminating machine in this application can achieve a high degree of uniformity and stability in coating quality, ultimately significantly improving the interlayer lamination quality of multilayer metal foils, reducing foil stress, and promptly winding up after heating in the heating box. Due to the set outer diameter and volume of the material roll, heat dissipation is slow, so the composite foil cooled slowly after winding, which plays a role in stress relief, far superior to the existing technology. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art 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.

[0025] Figure 1 This is a schematic diagram of the overall structure of the multilayer metal foil coating and laminating machine in the embodiments of this application. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the overall structure of the multilayer metal foil coating and laminating machine in the embodiments of this application. Figure 2 ;

[0027] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;

[0028] The reference numerals in the figures are as follows: 100, wall panel; 201, first unwinding reel; 202, second unwinding reel; 203, third unwinding reel; 301, drive roller; 302, driven roller; 303, slide block; 304, slider; 305, adjusting screw; 401, glue tray; 402, glue roller; 403, glue metering roller; 404, glue coating roller; 501, support; 502, saddle-shaped bracket; 600, low-temperature plasma assembly; 700, heating box; 800, take-up reel; 900, traction roller group; 101, cutout. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] Please refer to the following: Figures 1 to 3 This application describes a multilayer metal foil coating and laminating machine according to an embodiment. The multilayer metal foil coating and laminating machine includes a wall panel 100, an unwinding assembly, a laminating roller assembly, and a coating assembly. Wherein:

[0034] The unwinding assembly includes a first unwinding reel 201 for unwinding the intermediate foil, a second unwinding reel 202 for unwinding the face foil, and a third unwinding reel 203 for unwinding the bottom foil. The first unwinding reel 201, the second unwinding reel 202, and the third unwinding reel 203 are rotatably mounted on the wall panel 100 and are arranged in parallel at intervals. The composite roller assembly includes an active roller 301 and a passive roller 302 rotatably mounted on the wall panel 100. The active roller 301 and the passive roller 302 are arranged in parallel and cooperate to form a composite gap that bonds the face foil and the bottom foil to the front and back sides of the intermediate foil. The coating assembly includes a top-opening glue tray 401 and a glue-carrying roller 402 that is horizontally mounted above the glue tray 401 and can take glue from the glue tray 401. It also includes a leveling and metering roller 403 and a coating roller 404, which are parallel to the glue-carrying roller 402. The glue-carrying roller 402, the leveling and metering roller 403, and the coating roller 404 are all rotatably mounted, and the leveling and metering roller 403 forms a predetermined width interval with the glue-carrying roller 402 and the coating roller 404, respectively. The coating assembly also has two sets of rollers 404 symmetrically arranged about the lamination gap, with a coating gap directly opposite the lamination gap between them. In this embodiment, the active roller 301 is used to connect with an external drive structure such as a motor and cooperates with the passive roller 302 to laminate multilayer metal foil.

[0035] According to the structure provided in this embodiment, in the multilayer metal foil coating and laminating machine provided in this embodiment, each coating assembly quantitatively takes adhesive from the adhesive tray 401 through the adhesive roller 402. Subsequently, when the adhesive passes through the preset interval between the adhesive roller 402 and the uniform adhesive metering roller 403, it is subjected to precise shearing and metering action, forming a uniform and stable adhesive film. This adhesive film is then transferred to the coating roller 404, and finally, through the coating gap formed between the two coating rollers 404, it is precisely and uniformly applied to both surfaces of the intermediate foil passing through its position simultaneously. In addition, since the two coating assemblies are arranged symmetrically, this ensures that the process parameters (such as adhesive amount, pressure, and speed) for double-sided coating are completely consistent, avoiding the problem of inconsistent adhesive layer states caused by time differences or parameter differences in step-by-step coating or asymmetrical coating. At the same time, the two coating rollers 404 act as pressure rollers for each other, reducing the number of components and effectively reducing costs. Based on the above principles, the multilayer metal foil coating and laminating machine in this embodiment can achieve a high degree of uniformity and stability in coating quality, ultimately significantly improving the interlayer lamination quality of multilayer metal foils, reducing foil stress, and promptly winding up the material after heating in the heating box (see below). Due to the set outer diameter and volume of the roll, heat dissipation is slow, so the composite foil cools down slowly after winding, which plays a role in stress relief, far superior to the existing technology.

[0036] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 3The multilayer metal foil coating and laminating machine also includes a support 501 connected to the wall panel 100 and a saddle-shaped bracket 502 connected to the support 501 and spaced apart from the wall panel 100. The ends of the adhesive roller 402, the uniform adhesive metering roller 403, and the coating roller 404 are all connected to the saddle-shaped bracket 502. The wall panel 100 has a contoured opening 101 relative to the saddle-shaped bracket 502, allowing one saddle-shaped bracket 502 closest to the wall panel 100 to be exposed on the rear side of the wall panel 100. According to the structure provided in this embodiment, the saddle-shaped bracket 502 can integrate all coating rollers into one unit, fundamentally eliminating the cumulative errors and relative positional variations that may occur due to the individual installation of each roller. This integrated support ensures that the axial parallelism and radial spacing between all rollers can be maintained stably even under high-speed operation and long-term load, which is also conducive to further improving the interlayer composite quality of multilayer metal foil. Here, the transmission structure of the glue roller 402, the glue metering roller 403 and the glue coating roller 404 are all located on the side close to the wall plate 100. Therefore, the transmission structure located on the rear side of the saddle-shaped bracket 502 can be easily maintained through the cutout 101. In this embodiment, the transmission structure can be a servo motor driven gear pair structure of the prior art.

[0037] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 3 The multilayer metal foil coating and laminating machine also includes several sets of low-temperature plasma components 600 capable of surface treatment. The low-temperature plasma components 600 are distributed at predetermined positions on the wall panel 100 and are positioned directly opposite the surface of the target foil to be treated. According to the structure provided in this embodiment, by performing online low-temperature plasma treatment on the foil using the low-temperature plasma components 600 before it enters the coating or laminating process, the foil surface can be effectively cleaned. This pretreatment significantly enhances the interfacial bonding force between the adhesive layer and the foil, thereby further improving the interlayer lamination quality of the multilayer metal foil. It should also be noted that the low-temperature plasma components 600 can be selected from commonly used low-temperature plasma treatment equipment for surface treatment in the art, and will not be described in detail here.

[0038] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 3The composite roller assembly also includes a slide block 303 connected to the wall panel 100 and a slider 304 slidably connected to the slide block 303. The sliding direction of the slider 304 is perpendicular to the axial direction of the active roller 301, and the passive roller 302 is mounted on the slider 304 and can follow the slider 304 to approach or move away from the active roller 301. According to the structure provided in this embodiment, the passive roller 302 is mounted on the slidable slider 304. By pushing the slider 304, the gap between the passive roller 302 and the active roller 301 can be directly adjusted. In this way, the multilayer metal foil coating and laminating machine in this embodiment can flexibly adapt to composite materials of different thicknesses and numbers of layers, thereby further improving the interlayer lamination quality of multilayer metal foils.

[0039] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 3 The composite roller assembly also includes an adjusting screw 305 threaded to the slide block 303 and axially parallel to the sliding direction of the slider 304; the adjusting screw 305 passes through the slide block 303 and abuts against the slider 304. According to the structure provided in this embodiment, the rotation of the adjusting screw 305 can finely control the displacement of the slider 304, thereby achieving precise adjustment of the composite gap, ensuring that the composite pressure is always in the optimal state, which can further improve the interlayer composite quality of multilayer metal foils.

[0040] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 3 The multilayer metal foil coating and laminating machine also includes a heating chamber 700 capable of heating the foil. The heating chamber 700 and the coating assembly are distributed on opposite sides of the lamination gap. According to the structure provided in this embodiment, the heating chamber 700 can not only dry the adhesive layer between the multilayer metal foils after lamination, but also reduce the stress of the laminated metal foils through heating. This helps to effectively eliminate interlayer stress, thereby further improving the interlayer lamination quality of the multilayer metal foils.

[0041] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 3 The multilayer metal foil coating and laminating machine also includes a winding reel 800 for winding the composite foil. The winding reel 800 is rotatably mounted on the wall panel 100 and spaced apart from the heating box 700. According to the structure provided in this embodiment, placing the winding reel 800 behind the heating box 700 allows the residual heat carried by the foil during the winding process to be retained inside the roll, forming a slow cooling process. This continuous and slow cooling process is equivalent to performing a residual heat stress relief treatment on the composite foil, which not only helps the adhesive to cure completely but also effectively eliminates the internal stress generated during the lamination process. This further improves the flatness and dimensional stability of the composite material while completing the winding, thus further enhancing the interlayer lamination quality of the multilayer metal foil.

[0042] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 3 The multilayer metal foil coating and laminating machine also includes a traction roller group 900 disposed between the take-up reel 800 and the heating box 700. According to the structure provided in this embodiment, the traction roller group 900 can pull the foil at a constant linear speed and establish a stable speed reference before the winding tension, avoiding stretching or wrinkling of the foil, which is still in a warm and softened state after heating, due to uneven stress. This can further improve the interlayer lamination quality of the multilayer metal foil.

[0043] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 3 The multilayer metal foil coating and laminating machine also includes several servo motors (not shown in the attached drawings, but commonly used servo motors in the art can be used); the first unwinding reel 201, the second unwinding reel 202, the third unwinding reel 203, the rewinding reel 800, the composite roller group, the coating component, and the traction roller group 900 are all driven by a servo motor and can be servo-linked. According to the above structure provided in this embodiment, the first unwinding reel 201, the second unwinding reel 202, the third unwinding reel 203, the rewinding reel 800, the composite roller group, the coating component, and the traction roller group 900 are all driven by independent servo motors and can be precisely coordinated through the central control system, thereby realizing synchronous linkage control of the tension at each station. This not only effectively ensures the tension, but more importantly, it ensures the stability of the linear speed throughout the entire process from unwinding to rewinding, which is also conducive to further improving the interlayer lamination quality of the multilayer metal foil; it is understood that this multilayer metal foil coating and laminating machine can also be equipped with a correction device commonly used in the art on the path of the foil as needed to prevent the foil from deviating.

[0044] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A multi-layer metal foil coating and laminating machine, characterized in that, include: Wall panel (100); The unwinding assembly includes a first unwinding reel (201) for unwinding intermediate foil, a second unwinding reel (202) for unwinding face foil, and a third unwinding reel (203) for unwinding bottom foil. The first unwinding reel (201), the second unwinding reel (202), and the third unwinding reel (203) are rotatably mounted on the wall panel (100) and arranged in parallel at intervals. The composite roller assembly includes an active roller (301) and a passive roller (302) respectively rotatably mounted on the wall panel (100). The active roller (301) and the passive roller (302) are arranged in parallel and cooperate to form a composite gap that combines the face foil and the bottom foil to the front and back sides of the intermediate foil. The coating assembly includes a top-opening glue tray (401) and a glue-carrying roller (402) that is horizontally mounted above the glue tray (401) and can take glue from the glue tray (401). It also includes a glue-spreading metering roller (403) and a glue-applying roller (404) that are parallel to the glue-spreading roller (402). The glue-spreading roller (402), the glue-spreading metering roller (403), and the glue-applying roller (404) are all rotatably mounted, and the glue-spreading metering roller (403) forms a predetermined width of interval with the glue-spreading roller (402) and the glue-applying roller (404) respectively. The coating assembly also has two sets of rollers symmetrically arranged about the composite gap, and the glue-applying rollers (404) form a glue-applying gap directly opposite the composite gap.

2. The multilayer metal foil coating and laminating machine as described in claim 1, characterized in that: The multi-layer metal foil coating and laminating machine also includes a support (501) connected to the wall panel (100) and a saddle-shaped bracket (502) connected to the support (501) and spaced apart from the wall panel (100). Both ends of the glue roller (402), the glue metering roller (403), and the glue coating roller (404) are connected to the saddle-shaped bracket (502); The wall panel (100) has a contoured cutout (101) relative to the saddle-shaped bracket (502) to expose one of the saddle-shaped brackets (502) near the wall panel (100) on the rear side of the wall panel (100).

3. The multilayer metal foil coating and laminating machine as described in claim 2, characterized in that: The multilayer metal foil coating and laminating machine also includes several sets of low-temperature plasma components (600) capable of surface treatment. The low-temperature plasma assembly (600) is distributed at predetermined positions on the wall panel (100) and is positioned directly opposite the surface of the target foil to be treated.

4. The multilayer metal foil coating and laminating machine as described in claim 1, characterized in that: The composite roller assembly also includes a slide (303) connected to the wall panel (100) and a slider (304) slidably connected to the slide (303). The sliding direction of the slider (304) is perpendicular to the axial direction of the active roller (301), and the passive roller (302) is mounted on the slider (304) and can follow the slider (304) to move closer to or away from the active roller (301).

5. The multilayer metal foil coating and laminating machine as described in claim 4, characterized in that: The composite roller assembly also includes an adjusting screw (305) that is threaded to the slide block (303) and has an axial direction parallel to the sliding direction of the slider (304). The adjusting screw (305) passes through the slide (303) and abuts against the slider (304).

6. The multilayer metal foil coating and laminating machine according to any one of claims 1-5, characterized in that: The multilayer metal foil coating and laminating machine also includes a heating box (700) capable of heating the foil, and the heating box (700) and the coating assembly are distributed on opposite sides of the laminating gap.

7. The multilayer metal foil coating and laminating machine as described in claim 6, characterized in that: The multi-layer metal foil coating and laminating machine also includes a winding reel (800) for winding the composite foil, the winding reel (800) being rotatably mounted on the wall panel (100) and spaced apart from the heating box (700).

8. The multilayer metal foil coating and laminating machine as described in claim 7, characterized in that: The multi-layer metal foil coating and laminating machine also includes a traction roller group (900) disposed between the take-up reel (800) and the heating box (700).

9. The multilayer metal foil coating and laminating machine as described in claim 7, characterized in that: The multilayer metal foil coating and laminating machine also includes several servo motors; The first unwinding reel (201), the second unwinding reel (202), the third unwinding reel (203), and the take-up reel (800) are each driven to a servo motor and can be servo-driven.

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