A surface treatment device for processing a high-flatness composite packaging film

Abstract

The utility model relates to composite packaging film processing technical field, concretely is a kind of surface treatment device for high flatness composite packaging film processing, including bottom plate, still including corona mechanism, cooling mechanism and drying mechanism, corona mechanism includes cover shell, electrode assembly and grounding roller, cooling mechanism includes two cooling rollers and conveying assembly, drying mechanism includes two air knives and gas sending assembly, by setting cooling mechanism, part of cold water can enter the inside of grounding roller from one end, flow along the passage, and discharge from the other end of grounding roller, ensure that cooling liquid fills entire roller body, realize primary cooling, another part of cold water in cooling mechanism can enter the inside of two cooling rollers from one end, flow along the passage in the inside of cooling roller and discharge from the other end of cooling roller, realize secondary cooling, the composite packaging film that passes through corona is rapidly cooled and shaped, prevent heat shrinkage and lead to deformation, it is favorable to improve the flatness of composite packaging film.

Description

Technical Field

[0001] This utility model relates to the field of composite packaging film processing technology, specifically a surface treatment device for processing high-flatness composite packaging films. Background Technology

[0002] Composite packaging film is a packaging material made from multiple layers of film through printing, lamination, and other processes. To ensure the adhesion of subsequent printing and lamination processes, the film substrate must undergo surface treatment to improve its surface tension. Currently, the most mainstream treatment method in industry is corona treatment. Its principle is to use a high-frequency, high-voltage electric field to ionize the air near the electrodes, generating low-temperature plasma. This plasma bombards the film surface, causing polar groups to form on the surface and increasing surface roughness through physical and chemical reactions, thereby achieving activation and cleaning, and significantly improving surface energy.

[0003] During the corona treatment process, the continuous discharge between the electrode and the film surface generates a large amount of concentrated heat. Local overheating can cause irreversible thermal shrinkage and deformation of the film, resulting in wrinkles, warping, or even stretching deformation, which severely damages its flatness. High flatness is the key to ensuring the quality of subsequent high-speed printing and lamination. The decrease in flatness will directly lead to quality defects such as misregistration and lamination bubbles. To address this problem, a surface treatment device for high flatness lamination packaging film processing is now provided. Utility Model Content

[0004] The purpose of this invention is to provide a surface treatment device for processing high-flatness composite packaging films, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A surface treatment device for processing high-flatness composite packaging film includes a base plate, and also includes a corona treatment mechanism, a cooling mechanism and a drying mechanism; The corona mechanism includes a housing, an electrode assembly, and a grounding roller. Two support plates are symmetrically fixed to the top of the base plate. The housing is fixedly installed between the two support plates. The electrode assembly is installed below the housing. The grounding roller is located below the electrode assembly, and both ends of the grounding roller are rotatably connected to the two support plates through bearings. The cooling mechanism includes two cooling rollers and a conveying assembly. Each support plate has a vertical plate on one side, and each vertical plate is fixed to the top of the base plate. The two cooling rollers are arranged vertically, and the two ends of each cooling roller are rotatably connected to the two vertical plates through bearings. The conveying assembly is installed between the grounding roller and the two cooling rollers. The drying mechanism includes two air knives and an air supply assembly. The two air knives are located on the side of the two cooling rollers away from the grounding roller, and the air supply assembly is installed between the two vertical plates and the two air knives.

[0006] As a further embodiment of this invention, a channel is provided in the middle of both the grounding roller and the two cooling rollers.

[0007] As a further embodiment of this utility model: the conveying assembly includes a water pump, a heat exchanger, a water tank, an outlet main pipe, and a return main pipe. The water pump, water tank, and heat exchanger are connected in sequence by pipes and are all installed on the top of the casing. The outlet main pipe is installed at the output end of the water pump. The other end of the outlet main pipe is connected to multiple outlet water pipes. The multiple outlet water pipes are rotatably connected to the grounding roller and one end of the two cooling rollers through bearings. One end of the return main pipe is connected to the input end of the heat exchanger. The other end of the return main pipe is connected to multiple channels. The multiple channels are rotatably connected to the grounding roller and the end of the two cooling rollers away from the outlet water pipe through bearings.

[0008] As a further embodiment of this utility model: the air supply assembly includes an air pump, a drying chamber, a connecting pipe, and two air outlet pipes. Both ends of the two air outlet pipes are installed between two vertical plates. Each air knife is installed on one air outlet pipe. The air pump is installed on one side of one of the vertical plates. The drying chamber is located above the air pump. The output end of the air pump is connected to the input end of the drying chamber through a delivery pipe. One end of the connecting pipe is connected to the output end of the drying chamber. One end of each air outlet pipe is connected to the connecting pipe.

[0009] As a further embodiment of this utility model: the end of each water outlet pipe away from the water outlet pipe is connected to one end of a channel, and the end of each return branch pipe away from the return main pipe is connected to the other end of a channel.

[0010] As a further embodiment of this utility model: a guide roller is provided on the side of the grounding roller closer to the cooling roller, and an inlet roller is provided on the side of the grounding roller farther from the cooling roller. Both ends of the inlet roller and the guide roller are rotatably mounted on two support plates.

[0011] As a further embodiment of this utility model: each vertical plate has a side plate fixed on the side away from the support plate, and two guide rollers are provided between the two side plates, with both ends of each guide roller rotatably connected to the two side plates.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The present invention provides a surface treatment device for processing high-flatness composite packaging film. By setting a cooling mechanism, some cold water can enter the interior of the grounding roller from one end, flow along the channel, and be discharged from the other end of the grounding roller, ensuring that the coolant fills the entire roller body, realizing primary cooling, rapidly cooling and shaping the composite packaging film after corona discharge, efficiently removing the concentrated heat generated by the discharge, and preventing deformation caused by thermal shrinkage.

[0013] 2. The surface treatment device for high flatness composite packaging film processing of this utility model has another part of the cold water in the cooling mechanism that can enter the interior of two cooling rollers from one end, flow along the channel inside the cooling rollers and be discharged from the other end of the cooling rollers to achieve two-stage cooling, which can quickly cool the composite packaging film that has been heated by corona to room temperature, prevent deformation and adhesion caused by heat accumulation after winding, and help improve the flatness of the composite packaging film.

[0014] 3. The surface treatment device for processing high-flatness composite packaging film of this utility model, by setting up a drying mechanism, uses two air knives to blow filtered and dried room temperature air to both sides of the composite packaging film, which can not only prevent condensation water caused by temperature difference from adhering to the film, but also use airflow to remove residual heat on the composite packaging film. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0016] Figure 2 This utility model Figure 1 A magnified structural diagram of part A in the middle.

[0017] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0018] Figure 4 This utility model Figure 3 A magnified structural diagram of part B.

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of this utility model.

[0020] Figure 6 This is a schematic diagram of the cross-sectional structure of the grounding roller in this utility model.

[0021] The components are as follows: 11. Base plate; 12. Support plate; 13. Cover; 14. Electrode assembly; 15. Grounding roller; 16. Inlet roller; 17. Outlet roller; 18. Cooling roller; 19. Vertical plate; 20. Side plate; 21. Guide roller; 22. Water pump; 23. Heat exchanger; 24. Water tank; 25. Main outlet pipe; 26. Outlet water branch pipe; 27. Channel; 28. Main return pipe; 29. ​​Return branch pipe; 30. Air pump; 31. Connecting pipe; 32. Air outlet pipe; 33. Air knife; 34. Drying oven. Detailed Implementation

[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0023] The present invention provides the following preferred embodiments: Example 1, as Figures 1-6 As shown, a surface treatment device for processing high-flatness composite packaging film includes a base plate 11, and also includes a corona treatment mechanism, a cooling mechanism and a drying mechanism; The corona treatment mechanism includes a housing 13, an electrode assembly 14, and a grounding roller 15. Two support plates 12 are symmetrically fixed to the top of the base plate 11. The housing 13 is fixedly installed between the two support plates 12. The electrode assembly 14 is installed below the housing 13, and the grounding roller 15 is located below the electrode assembly 14. Both ends of the grounding roller 15 are rotatably connected to the two support plates 12 via bearings. It should be noted that the outer wall of the grounding roller 15 is made of ceramic material. The ceramic layer is an excellent insulator, ensuring that the discharge current only passes through the thin film surface. The electrode assembly 14 mainly includes a high-voltage electrode, a corona roller, and supporting and insulating structures. The electrode assembly 14 is existing technology and is the core actuator of the corona treatment system. Its fundamental function is to safely and controllably generate a uniform and stable corona discharge. Through the high-voltage electrode core and dielectric layer, it works in conjunction with the grounding roller 15 to establish a strong electric field, ionizing air into plasma, thereby modifying the thin film surface. The cooling mechanism includes two cooling rollers 18 and a conveying assembly. Each support plate 12 has a vertical plate 19 on one side. Each vertical plate 19 is fixed to the top of the base plate 11. The two cooling rollers 18 are arranged vertically. Both ends of each cooling roller 18 are rotatably connected to the two vertical plates 19 through bearings. The conveying assembly is installed between the grounding roller 15 and the two cooling rollers 18. The conveying assembly is used to convey cold water into the interior of the grounding roller 15 and the two cooling rollers 18. Some of the cold water can enter the interior of the grounding roller 15 from one end, flow along the channel 27, and be discharged from the other end of the grounding roller 15, ensuring that the coolant fills the entire roller body, achieving primary cooling, rapidly cooling and shaping the corona-treated composite packaging film, efficiently removing the concentrated heat generated by the discharge, and preventing deformation caused by thermal shrinkage. Another portion of cold water can enter the interior of the two cooling rollers 18 from one end, flow along the channel 27 inside the cooling rollers 18 and be discharged from the other end of the cooling rollers 18, achieving secondary cooling, which rapidly cools the composite packaging film heated by corona to room temperature, preventing deformation and adhesion caused by heat accumulation after winding, and helping to improve the flatness of the composite packaging film. The drying mechanism includes two air knives 33 and an air supply assembly. The two air knives 33 are located on the side of the two cooling rollers 18 away from the grounding roller 15, and the air supply assembly is installed between the two vertical plates 19 and the two air knives 33. The air supply assembly is used to deliver filtered and dried ambient temperature air into the two air knives 33. This not only prevents condensation caused by temperature differences from adhering to the membrane, but also uses airflow to remove residual heat from the composite packaging film.

[0024] like Figures 1-6 As shown, a channel 27 is provided in the middle of the grounding roller 15 and the two cooling rollers 18. The channel 27 is used to store cold water to achieve heat exchange and achieve the effect of cooling.

[0025] like Figures 1-6 As shown, the conveying assembly includes a water pump 22, a heat exchanger 23, a water tank 24, an outlet main pipe 25, and a return main pipe 28. The water pump 22, water tank 24, and heat exchanger 23 are connected in sequence by pipes and are all installed on the top of the cover 13. The outlet main pipe 25 is installed at the output end of the water pump 22. The other end of the outlet main pipe 25 is connected to multiple outlet water pipes 26. The multiple outlet water pipes 26 are rotatably connected to one end of the grounding roller 15 and the two cooling rollers 18 through bearings. One end of the return main pipe 28 is connected to the input end of the heat exchanger 23. The other end of the return main pipe 28 is connected to multiple channels 27. The multiple channels 27 are rotatably connected to the end of the grounding roller 15 and the two cooling rollers 18 away from the outlet water pipes 26 through bearings. It should be noted that the water tank 24 is pre-stored with cold water. When the composite packaging film needs to be cooled, the water pump 22 is controlled by the controller. The water pump 22 can transport the cold water stored in the water tank 24 through the main water outlet pipe 25 to multiple water outlet pipes 26. The water outlet pipes 26 can be used to transport the cold water to the channel 27 between the grounding roller 15 and the two cooling rollers 18, so that the cold water fills the channel 27, which can quickly cool and shape the composite packaging film after corona discharge, efficiently remove the concentrated heat generated by the discharge, prevent deformation caused by heat shrinkage, and improve the flatness of the composite packaging film. After heat exchange inside channel 27, the water returns through return branch pipe 29 and return main pipe 28, and then undergoes heat exchange through heat exchanger 23, so that the cooled water returns to the inside of water tank 24, achieving recycling.

[0026] like Figures 1-6 As shown, the air supply assembly includes an air pump 30, a drying chamber 34, a connecting pipe 31, and two air outlet pipes 32. Both ends of the two air outlet pipes 32 are installed between two vertical plates 19. Each air knife 33 is installed on one air outlet pipe 32. The air knife 33 and the air pump 30 are connected. The air pump 30 is installed on one side of one of the vertical plates 19. The drying chamber 34 is located above the air pump 30. The output end of the air pump 30 is connected to the input end of the drying chamber 34 through a delivery pipe. It should be noted that the input end of the air pump 30 is equipped with a dustproof mesh structure. One end of the connecting pipe 31 is connected to the output end of the drying chamber 34. One end of each air outlet pipe 32 is connected to the connecting pipe 31. Specifically, the interior of the drying chamber 34 is filled with desiccant. It should be noted that the desiccant inside the drying chamber 34 needs to be replaced regularly as needed to achieve a high drying effect. The controller controls the air pump 30 to work. The air pump 30 can filter the ambient temperature air through the dustproof net and enter the drying chamber 34 for dehumidification and drying. The dried air passes through the connecting pipe 31 and the air outlet pipe 32 and is sprayed out through the air knife 33. The two air knives 33 blow filtered and dried ambient temperature air to both sides of the composite packaging film, which not only prevents condensation caused by temperature difference from adhering to the film, but also uses airflow to remove residual heat from the composite packaging film.

[0027] like Figures 1-6 As shown, the end of each water outlet pipe 26 away from the water outlet pipe 26 is connected to one end of a channel 27, and the end of each return branch pipe 29 away from the return main pipe 28 is connected to the other end of a channel 27. It should be noted that each support plate 12 has multiple pipe clamps installed on its surface to secure the pipes, ensuring that the outlet main pipe 25 and the return main pipe 28 can be stably installed on the side of the support plate 12. Specifically, each water outlet pipe 26 is inserted into the interior of a channel 27, and each return pipe 29 is inserted into the other end of a channel 27. The channel 27 is used to connect the water outlet pipe 26 and the return pipe 29. The water outlet pipe 26 and the return pipe 29 are rotatably connected to the grounding roller 15 and the two cooling rollers 18 through bearings to ensure that the grounding roller 15 and the cooling roller 18 will not drive the water outlet pipe 26 and the return pipe 29 to rotate when they rotate under the action of the packaging film.

[0028] like Figures 1-6 As shown, the grounding roller 15 is provided with an outlet roller 17 on the side close to the cooling roller 18, and an inlet roller 16 is provided on the side of the grounding roller 15 away from the cooling roller 18. Both ends of the inlet roller 16 and the outlet roller 17 are rotatably mounted on two support plates 12. The inlet roller 16 and the outlet roller 17 serve as guides. It should be noted that in actual use, this device needs to be used in conjunction with an unwinding device and a rewinding device. The unwinding device is located on the side of the inlet roller 16 away from the grounding roller 15, and the rewinding device is located on the side of the outlet roller 17 away from the grounding roller 15, thereby completing the surface treatment of the composite packaging film.

[0029] like Figures 1-6 As shown, each vertical plate 19 has a side plate 20 fixed on the side away from the support plate 12. Two guide rollers 21 are provided between the two side plates 20. Both ends of each guide roller 21 are rotatably connected to the two side plates 20. By setting two guide rollers 21, the composite packaging film can be guided and supported.

[0030] The beneficial effects of this utility model are specifically reflected in the fact that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A surface treatment device for processing high-flatness composite packaging films, comprising a base plate (11), characterized in that, It also includes a corona treatment mechanism, a cooling mechanism, and a drying mechanism; The corona mechanism includes a housing (13), an electrode assembly (14), and a grounding roller (15). Two support plates (12) are symmetrically fixed at the top of the base plate (11). The housing (13) is fixedly installed between the two support plates (12). The electrode assembly (14) is installed below the housing (13). The grounding roller (15) is located below the electrode assembly (14), and both ends of the grounding roller (15) are rotatably connected to the two support plates (12) through bearings. The cooling mechanism includes two cooling rollers (18) and a conveying assembly. Each support plate (12) has a vertical plate (19) on one side. Each vertical plate (19) is fixed to the top of the base plate (11). The two cooling rollers (18) are arranged vertically. Both ends of each cooling roller (18) are rotatably connected to the two vertical plates (19) through bearings. The conveying assembly is installed between the grounding roller (15) and the two cooling rollers (18). The drying mechanism includes two air knives (33) and an air supply assembly. The two air knives (33) are located on the side of the two cooling rollers (18) away from the ground roller (15), and the air supply assembly is installed between the two vertical plates (19) and the two air knives (33).

2. The surface treatment device for processing high-flatness composite packaging film according to claim 1, characterized in that, A channel (27) is provided in the middle of the grounding roller (15) and the two cooling rollers (18).

3. The surface treatment device for processing high-flatness composite packaging film according to claim 2, characterized in that, The conveying assembly includes a water pump (22), a heat exchanger (23), a water tank (24), an outlet main pipe (25), and a return main pipe (28). The water pump (22), the water tank (24), and the heat exchanger (23) are connected in sequence by pipes and are all installed on the top of the casing (13). The outlet main pipe (25) is installed at the output end of the water pump (22). The other end of the outlet main pipe (25) is connected to multiple outlet water pipes (26). The multiple outlet water pipes (26) are rotatably connected to one end of the grounding roller (15) and the two cooling rollers (18) through bearings. One end of the return main pipe (28) is connected to the input end of the heat exchanger (23). The other end of the return main pipe (28) is connected to multiple channels (27). The multiple channels (27) are rotatably connected to the end of the grounding roller (15) and the two cooling rollers (18) away from the outlet water pipes (26) through bearings.

4. The surface treatment device for processing high-flatness composite packaging film according to claim 3, characterized in that, The air supply assembly includes an air pump (30), a drying chamber (34), a connecting pipe (31), and two air outlet pipes (32). Both ends of the two air outlet pipes (32) are installed between two vertical plates (19). Each air knife (33) is installed on one of the air outlet pipes (32). The air pump (30) is installed on one side of one of the vertical plates (19). The drying chamber (34) is located above the air pump (30). The output end of the air pump (30) is connected to the input end of the drying chamber (34) through a delivery pipe. One end of the connecting pipe (31) is connected to the output end of the drying chamber (34). One end of each air outlet pipe (32) is connected to the connecting pipe (31).

5. The surface treatment apparatus for processing high-flatness composite packaging film according to claim 4, characterized in that, Each water outlet pipe (26) has one end connected to one end of a channel (27) away from the water outlet pipe (26), and each return branch pipe (29) has one end connected to the other end of a channel (27) away from the return main pipe (28).

6. The surface treatment apparatus for processing high-flatness composite packaging film according to claim 5, characterized in that, The grounding roller (15) has an outlet roller (17) on the side close to the cooling roller (18) and an inlet roller (16) on the side away from the cooling roller (18). Both ends of the inlet roller (16) and the outlet roller (17) are rotatably mounted on two support plates (12).

7. The surface treatment apparatus for processing high-flatness composite packaging film according to claim 6, characterized in that, Each vertical plate (19) has a side plate (20) fixed on the side away from the support plate (12). Two guide rollers (21) are provided between the two side plates (20), and both ends of each guide roller (21) are rotatably connected to the two side plates (20).

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