A high speed compounder based on multi-stage coating and synergistic curing

Abstract

The utility model relates to a compound machine, concretely is a kind of high-speed compound machine based on multistage coating and collaborative solidification, including unwinding mechanism, multistage coating device, oven structure and winding mechanism, the multistage coating device includes multiple coating unit with independent drive and metering;The oven structure is formed with multiple independent drying zones, and each independent drying zone corresponds after the coating unit that substrate passes. According to the requirement of different coating process, the order of substrate passing through multiple coating units is flexibly adjusted, continuous production is realized, multiple substrate on-machine operations are not needed, and processing efficiency is effectively improved;By setting multiple independent drying zones in the oven structure, the coating layers of front and rear coating processes are avoided from interfering with each other, the processing quality of coating is improved, coating precision and linear speed are improved, and energy consumption and solvent residue are reduced.

Description

Technical Field

[0001] This utility model relates to a laminating machine, specifically a high-speed laminating machine based on multi-segment coating and synergistic curing. Background Technology

[0002] In the field of wet lamination, traditional lamination equipment usually adopts a single paper feeding coating method or a combined paper feeding coating method, which can only realize the functions of coating the back side of the substrate, coating the front side of the substrate, and coating the adhesive layer required for paper-aluminum substrate lamination.

[0003] Faced with increasingly diversified market demands and new composite processes, some innovative composite paper products often require multiple machine runs, multiple laminations, or multiple coatings to complete the processing, which significantly increases the manufacturing costs and production cycle for production enterprises, and restricts the improvement of production efficiency and capacity.

[0004] A published patent for a high-speed front and back coating laminating machine (publication number: CN110682654A) includes an automatic receiving component for raising the film material to be processed, a first back coating component for buffering the automatic receiving component to provide the film material, a second back coating component, a buffer storage component, a pre-lamination water cooling component, a laminating component, a film supply component, a coloring component, a drying component, and a receiving component for collecting the processed finished product. The first back coating component is located at the discharge end of the buffer storage component and is used to perform the first back coating treatment on the surface of the film material. This invention improves upon the shortcomings of existing devices by performing the first back coating treatment on the film material through the first back coating component, and then guiding it through the guide roller group in the drying component, sequentially performing lamination and second back coating treatments on the film material. The dried film material is cooled by the receiving and cooling component and then collected by the receiving component, thereby completing the rapid double-sided processing of the film material and greatly improving work efficiency.

[0005] The aforementioned coating and laminating machine arranges multiple coating stations in series and sets up an oven after the coating process to dry the substrate. Specifically, multiple sets of guide rollers are set up inside an oven so that the substrate enters the oven for drying after one coating, and then passes through the same oven for a second and third drying. Although this saves equipment space to some extent, its oven is usually equipped with only one hot air system, and all guide roller sets share the same hot air source and the same temperature and air volume parameters.

[0006] However, in actual production, the coating composition, coating thickness, solvent type and drying requirements of different coating layers often vary significantly, and the above-mentioned coating laminating machine is prone to poor coating quality. Utility Model Content

[0007] The purpose of this invention is to provide a high-speed laminating machine based on multi-segment coating and synergistic curing to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a high-speed laminating machine based on multi-segment coating and synergistic curing, comprising an unwinding mechanism, a multi-segment coating device, an oven structure, and a winding mechanism; the multi-segment coating device comprises multiple coating units with independent drive and metering; the oven structure forms multiple independent drying zones, each independent drying zone corresponding to the coating unit after which the substrate passes.

[0009] As described above, a high-speed laminating machine based on multi-segment coating and synergistic curing: the coating unit includes a first coating mechanism, a second coating mechanism and a third coating mechanism, wherein the first coating mechanism, the second coating mechanism and the third coating mechanism are one or more of microgravure coating, blade coating and reverse coating.

[0010] The high-speed laminating machine based on multi-segment coating and synergistic curing, as described above, further includes a laminating mechanism and a peeling mechanism. The laminating mechanism is used to laminate another substrate conveyed by the feeding mechanism with the pre-coated substrate, and the peeling mechanism is used to peel off the temporary carrier film on the laminated substrate.

[0011] A high-speed laminating machine based on multi-segment coating and synergistic curing as described above: the oven structure includes a first oven and a second oven, and multiple independent drying zones are distributed in the first oven and / or the second oven.

[0012] As described above, a high-speed laminating machine based on multi-segment coating and synergistic curing has multiple air outlet structures formed along the substrate movement direction in the independent drying zone, and each air outlet structure has an air inlet equipped with a heat exchanger.

[0013] As described above, a high-speed laminating machine based on multi-segment coating and synergistic curing is provided with two sets of unwinding mechanisms. The unwinding direction of the unwinding mechanism is provided with an automatic receiving unit for alternately realizing the automatic flat connection between the substrate tail and the base material head on the two unwinding mechanisms.

[0014] The high-speed laminating machine based on multi-segment coating and synergistic curing, as described above, also includes a buffer storage mechanism, which is located at the discharge end of the unwinding mechanism and is used to buffer the substrate provided by the unwinding mechanism.

[0015] As described above, a high-speed laminating machine based on multi-segment coating and synergistic curing is provided with a tension control mechanism at the front end of the winding mechanism to maintain constant tension of the substrate before winding.

[0016] Compared with the prior art, the beneficial effects of this utility model are: by arranging multiple coating units in series, it is possible to flexibly realize multi-station combinations such as back coating, double-sided coating, pre-coating before lamination, lamination adhesive coating, and front functional coating, which solves the limitation of the single function of traditional equipment. At the same time, by adjusting the feeding sequence of the substrate through the path switching guide roller group, the order in which the substrate passes through multiple coating units can be flexibly adjusted according to the requirements of different coating processes, so as to realize continuous production without the need for multiple substrate loading operations, which effectively improves processing efficiency.

[0017] By setting multiple independent drying zones in the oven structure, each independent drying zone can independently dry the substrate after the coating unit has been coated, eliminating the need for unified drying after all coating processes are completed. This avoids mutual interference between coatings in the preceding and following coating processes, improves coating quality, increases coating accuracy and linear speed, and reduces energy consumption and solvent residue. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a high-speed laminator based on multi-segment coating and synergistic curing.

[0019] In the diagram: 1. Unwinding mechanism; 2. Buffer storage mechanism; 3. First coating mechanism; 4. Composite mechanism; 5. Feeding mechanism; 6. Peeling mechanism; 7. Rewinding mechanism; 8. Second coating mechanism; 9. Third coating mechanism; 10. Tension control mechanism; 11. Rewinding mechanism; 12. First drying oven; 13. Second drying oven. Detailed Implementation

[0020] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0021] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0022] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0023] Please see Figure 1As a high-speed laminating machine based on multi-segment coating and synergistic curing according to this utility model, the high-speed laminating machine based on multi-segment coating and synergistic curing includes an unwinding mechanism 1, a multi-segment coating device, an oven structure, and a rewinding mechanism 11; the multi-segment coating device includes multiple coating units with independent drive and metering, and each coating unit is equipped with a path switching guide roller group. By adjusting the path switching guide roller group, the routing path of the substrate between different coating units can be adjusted. The order in which the substrate passes through each coating unit can be changed according to processing needs, adapting to different coating processing technologies. There is no need to disassemble and reassemble the substrate multiple times to re-feed it, which greatly simplifies the operation process of multi-process coating.

[0024] The oven structure has multiple independent drying zones, each corresponding to the coating unit after which the substrate passes; it also includes a laminating mechanism 4 and a peeling mechanism 6. The laminating mechanism 4 is used to laminate another substrate conveyed by the feeding mechanism 5 with the previously coated substrate. The peeling mechanism 6 is used to peel off the temporary carrier film on the laminated substrate. The peeling mechanism 6 has a receiving mechanism 7 on its side end, which is used to wind up the temporary carrier film after peeling.

[0025] In this embodiment, multiple coating units are arranged in series, which can flexibly realize multi-station combinations such as back coating, double-sided coating, pre-coating before lamination, lamination adhesive coating, and front functional coating, solving the limitation of single function of traditional equipment. At the same time, by adjusting the feeding sequence of the substrate by switching the guide roller group, the order in which the substrate passes through multiple coating units can be flexibly adjusted according to the requirements of different coating processes, realizing continuous production without the need for multiple substrate loading operations, effectively improving processing efficiency.

[0026] By setting multiple independent drying zones in the oven structure, each independent drying zone can independently dry the substrate after the coating unit has been coated, eliminating the need for unified drying after all coating processes are completed. This avoids mutual interference between coatings in the preceding and following coating processes, improves coating quality, increases coating accuracy and linear speed, and reduces energy consumption and solvent residue.

[0027] The coating unit includes a first coating mechanism 3, a second coating mechanism 8, and a third coating mechanism 9. The first coating mechanism 3, the second coating mechanism 8, and the third coating mechanism 9 are one or more of the following: gravure coating, blade coating, and reverse coating.

[0028] The first coating mechanism 3, the second coating mechanism 8, and the third coating mechanism 9 are coating units that can independently perform single-sided coating, double-sided coating, and double-back coating.

[0029] The first coating mechanism 3, the third coating mechanism 9 and the second coating mechanism 8 are arranged sequentially along the substrate travel direction, and together with the composite mechanism 4 and the peeling mechanism 6 mentioned above, they meet the substrate production requirements.

[0030] In one embodiment, along the substrate moving direction, the first coating mechanism 3 performs a first top coating on the substrate and dries it in an independent drying zone, then performs a lamination process in the lamination mechanism 4, and dries it again in an independent drying zone. Subsequently, the substrate moves to the third coating mechanism 9 for back coating and dries it in an independent drying zone. After back coating, the temporary carrier film is peeled off by the peeling mechanism 6, and then the substrate moves to the second coating mechanism 8 for a second top coating and dries it in an independent drying zone. The dried substrate is then wound up by the winding mechanism 11, thereby realizing production.

[0031] It can also meet other process requirements, for example: Back coating-lamination-top coating linkage process: The substrate is first coated and dried on the back, then coated with composite adhesive and bonded to the second substrate, and finally coated and cured on the front, completing a three-layer functional structure in one paper feed; Double back coating / double side coating reinforcement process: Using double back coating seats or double front and back coating seats, special functional coatings such as high barrier and high wear resistance can be superimposed; Pre-coating-lamination process: Adding functional coating before composite adhesive coating, realizing integrated molding of pre-coating layer-adhesive layer-lamination; Simplified coating and lamination process: Turning off redundant coating seats, only retaining composite adhesive coating, suitable for conventional paper-aluminum / paper-film lamination.

[0032] Furthermore, the oven structure includes a first oven 12 and a second oven 13, with multiple independent drying zones distributed within the first oven 12 and / or the second oven 13.

[0033] Of course, the above-mentioned oven structure of first oven 12 and second oven 13 is only a demonstration of one embodiment. In the specific implementation process, it can also be selected according to the specific coating requirements and structural layout requirements. This embodiment does not make specific limitations in this regard.

[0034] The independent drying zone has multiple air outlet structures formed along the direction of substrate movement, and each air outlet structure has a heat exchanger installed at its air inlet.

[0035] Each heat exchanger can independently adjust the outlet air temperature and air volume of its corresponding outlet structure, and can adjust drying parameters according to the drying requirements of different coatings, thereby improving drying quality and reducing production energy consumption.

[0036] The winding mechanism 11 is provided with a tension control mechanism 10 at the front end of the winding mechanism to maintain constant tension of the substrate before winding, so as to ensure stable tension of the substrate during the winding process, improve winding regularity, and avoid damage to the substrate due to loose winding or excessive tension.

[0037] The unwinding mechanism 1 is provided in two sets. The unwinding direction of the unwinding mechanism 1 is provided with an automatic receiving unit for alternately realizing the automatic flat connection of the base material tail and the base material head on the two unwinding mechanisms 1. When the raw material paper roll tail and the material head are flatly connected, the connection is smooth and accurate, and the connection transition is smooth and seamless, ensuring the continuous and stable conveying of the raw material paper roll and saving the time of connection auxiliary operation.

[0038] The high-speed laminating machine based on multi-segment coating and synergistic curing also includes a buffer storage mechanism 2, which is set at the discharge end of the unwinding mechanism 1 to buffer the substrate provided by the unwinding mechanism 1. When the substrate tail and the base material head are automatically flushed, subsequent processes do not need to stop the machine and can still maintain continuous material feeding, ensuring the continuity of overall production and avoiding frequent start-stops that affect processing accuracy and production efficiency.

[0039] The winding mechanism 11 is equipped with a tension control mechanism 10 at the front end of the winding mechanism to maintain constant tension of the substrate before winding. This mechanism can continuously stabilize the tension of the substrate during the winding process, so that the substrate roll after winding is neatly arranged and avoids problems such as wrinkles, winding misalignment or substrate breakage caused by uneven tension.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-speed laminating machine based on multi-segment coating and synergistic curing, comprising an unwinding mechanism (1), a multi-segment coating device, an oven structure, and a rewinding mechanism (11); characterized in that, The multi-segment coating device includes multiple coating units with independent drive and metering; the oven structure forms multiple independent drying zones, each independent drying zone corresponding to the coating unit after which the substrate passes; the oven structure includes a first oven (12) and a second oven (13), and the multiple independent drying zones are distributed in the first oven (12) and / or the second oven (13); multiple air outlet structures are formed in the independent drying zones along the direction of substrate movement, and each air outlet structure has a heat exchanger installed at its air inlet.

2. The high-speed laminating machine based on multi-segment coating and synergistic curing according to claim 1, characterized in that, The coating unit includes a first coating mechanism (3), a second coating mechanism (8), and a third coating mechanism (9). The first coating mechanism (3), the second coating mechanism (8), and the third coating mechanism (9) are one or more of the following: gravure coating, blade coating, and reverse coating.

3. The high-speed laminating machine based on multi-segment coating and synergistic curing according to claim 1, characterized in that, It also includes a composite mechanism (4) and a peeling mechanism (6). The composite mechanism (4) is used to composite another substrate conveyed by the feeding mechanism (5) with the pre-coated substrate, and the peeling mechanism (6) is used to peel off the temporary carrier film on the composite substrate.

4. A high-speed laminating machine based on multi-segment coating and synergistic curing as described in claim 1, characterized in that, The unwinding mechanism (1) is provided in two sets. The unwinding direction of the unwinding mechanism (1) is provided with an automatic receiving unit for alternately realizing the automatic flat connection between the substrate tail and the substrate head on the two unwinding mechanisms (1).

5. A high-speed laminating machine based on multi-segment coating and synergistic curing as described in claim 1, characterized in that, It also includes a buffer storage mechanism (2), which is located at the discharge end of the unwinding mechanism (1) and is used to buffer the substrate provided by the unwinding mechanism (1).

6. A high-speed laminating machine based on multi-segment coating and synergistic curing according to claim 1, characterized in that, The winding mechanism (11) is provided with a tension control mechanism (10) at the front end of the winding mechanism (11) for maintaining constant tension of the substrate before winding.

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