Corona structure for film processing

Abstract

The utility model discloses a corona structure for film processing, which comprises a mounting seat and a film body, a leading-in roller, a leading-out roller, a corona roller and a cooling roller are arranged on the inner wall of one opposite side of the mounting seat, the corona structure further comprises a cooling mechanism and a control mechanism, a mounting groove is formed in the inner wall of one side of the mounting seat, the motor is mounted on the inner wall of the mounting groove, an output shaft of the motor is fixedly connected to one end of the cooling roller, the cooling roller is of a hollow structure, and a condensation pipe and a spiral baffle plate are arranged in the cooling roller. The corona structure for film processing disclosed by the utility model has the effects of effectively taking away heat generated in the corona treatment process of the film body and improving the processing quality and cooling efficiency of the film body.

Description

Technical Field

[0001] This utility model relates to the field of thin film processing technology, and in particular to a corona structure for thin film processing. Background Technology

[0002] Corona treatment is an electrostatic treatment that enhances the adhesion of the substrate. It works by applying a high-frequency, high-voltage corona discharge to the surface of the plastic being treated, thereby increasing the adhesion of the substrate. Existing film production lines generally employ corona treatment during film manufacturing to roughen the film surface and increase its adhesion during bonding.

[0003] However, during the film processing, the surface of the film after corona treatment may become severely sticky on the pressure roller, and the temperature will rise, resulting in excessively high temperature of the contact pressure roller. Excessive viscosity and temperature will cause the film to be uneven, wrinkled or stick to the pressure roller, thus affecting the film production quality and production efficiency.

[0004] For example, during the film printing process, if the film surface becomes sticky and adheres to the pressing roller, the printing ink may not be evenly applied to the film surface, resulting in a blurry or missing printed pattern. This not only affects the aesthetics of the product but may also affect its performance. In addition, if the film wrinkles during the pressing process, these wrinkles may be amplified in subsequent processes such as lamination and cutting, leading to the final product being unqualified. Utility Model Content

[0005] This utility model discloses a corona structure for thin film processing, aiming to solve the technical problem that during the thin film processing, the surface of the corona-treated film may become severely sticky on the pressure roller, and the temperature will rise, resulting in excessively high temperature of the contact pressure roller. Excessive viscosity and temperature will cause the film to be uneven, wrinkled or stick to the pressure roller, thus affecting the production quality and efficiency of the film.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A corona structure for thin film processing includes a mounting base and a thin film body. An inlet roller, an outlet roller, a corona roller, and a cooling roller are arranged on opposite inner walls of the mounting base. The structure also includes a cooling mechanism located inside the cooling roller. The cooling mechanism includes a motor. A mounting groove is formed on one inner wall of the mounting base, and the motor is mounted on the inner wall of the mounting groove. The output shaft of the motor is fixedly connected to one end of the cooling roller. The cooling roller has a hollow structure, and a condenser tube and a spiral baffle are arranged inside. An opening is formed on the outer wall of the spiral baffle. The mounting base has several mounting holes. A first air pump is mounted on one outer wall of the mounting base. An air inlet pipe is fixedly connected to the exhaust port of the first air pump. One end of the air inlet pipe is connected to one end of the cooling roller via a bearing. An exhaust port is opened at the end of the cooling roller away from the air inlet pipe. An air collection box is provided between one end of the cooling roller and one inner wall of the mounting base. The air collection box communicates with the exhaust port. An exhaust hole is opened at the bottom of the air collection box. A dust removal mechanism is located below the cooling roller. An adjustment mechanism is located directly below the dust removal mechanism.

[0008] The above technical solution effectively removes the heat generated by the film body during the corona treatment process, improving the processing quality and cooling efficiency of the film body. Specifically, the film body enters the processing flow from the inlet roller, which smoothly introduces the film body into the corona treatment area. During the film body transport process, the film body undergoes corona treatment as it passes the corona roller. After corona treatment, the temperature of the film body increases. The motor drives the cooling roller to rotate through the output shaft. The surface of the cooling roller contacts the film body. The first air pump introduces external gas (such as air) into the cooling roller through the air inlet pipe. Then, the cooling medium (such as water or refrigerant) in the condenser tube carries away the heat through circulation. The spiral baffle plate enhances the disturbance and heat exchange effect of the cooling medium, ensuring that the film body receives a uniform temperature distribution during the cooling process and avoiding local overheating or insufficient cooling. After being cooled by the condenser tube, the hot air is discharged from the exhaust port. The gas collection box is used to collect and export these cooled gases to prevent them from accumulating inside the cooling roller.

[0009] In a preferred embodiment, the dust removal mechanism includes a connecting frame, on the top outer wall of the connecting frame are a plurality of suction brushes, the inside of the suction brushes is a hollow structure, a plurality of fixing grooves are formed on one outer wall of the connecting frame, an installation tube is provided on the inner wall of the fixing groove, the installation tube communicates with the inside of the suction brush, a connection port is formed on the outer wall of the mounting base away from the motor, one end of the plurality of installation tubes passes through the connection port and is provided with a connecting tube, an air pump is installed at one end of the connecting tube, and a collection component is provided at the exhaust port of the air pump.

[0010] In this solution, during use, the vacuum pump generates negative pressure through the connecting pipe, thereby driving the dust suction brush to perform dust suction. When the cooling roller rotates in place with the motor drive, several dust suction brushes clean the surface of the cooling roller. Due to the large number and even distribution of the dust suction brushes, they can fully cover the film surface and effectively remove impurities such as dust and oil. Since the mounting pipe is connected to the inside of the dust suction brush, the impurities collected by the dust suction brush can be transferred to the collection component for centralized processing through the mounting pipe, thereby quickly removing impurities from the surface of the film body.

[0011] In a preferred embodiment, the adjusting mechanism includes a mounting rod and three adjusting rods. The mounting rod is located between the inner walls of opposite sides of the mounting base. Three mounting plates are fixedly connected to the cylindrical outer wall of the mounting rod. A mounting frame is fixedly connected to the top outer wall of the mounting plate. The adjusting rod is threadedly connected to the mounting frame. A return spring is provided on the top inner wall of the mounting frame. One end of the adjusting rod is connected to the bottom outer wall of the connecting frame via a bearing. A limiting block is provided on the circumferential outer wall of the adjusting rod. One end of the return spring is fixedly connected to the top outer wall of the limiting block.

[0012] In this solution, when the height of the connecting frame needs to be adjusted, its position within the mounting frame can be changed by rotating the adjusting rod. Since the adjusting rod is connected to the mounting frame by a thread, rotating the adjusting rod will cause it to move up and down within the mounting frame. The up and down movement of the adjusting rod will drive the connecting frame to move up and down, thereby achieving the adjustment of the height of the connecting frame. When an external force is applied to the connecting frame and causes it to move, the adjusting rod will move accordingly and compress the return spring. When the external force disappears, the return spring will release its elasticity, pushing the limit block and the adjusting rod upward, so that the connecting frame returns to its initial position.

[0013] As described above, a corona structure for thin film processing includes a mounting base and a thin film body. The inner wall of one opposite side of the mounting base is provided with an inlet roller, an outlet roller, a corona roller, and a cooling roller. The structure also includes a cooling mechanism located inside the cooling roller. The cooling mechanism includes a motor. An installation groove is formed on one side of the inner wall of the mounting base, and the motor is mounted on the inner wall of the installation groove. The output shaft of the motor is fixedly connected to one end of the cooling roller. The cooling roller has a hollow structure, and its interior is provided with a condenser tube and a spiral baffle plate. The outer surface of the spiral baffle plate... The mounting base has several mounting holes. A first air pump is mounted on one outer wall of the mounting base. An air inlet pipe is fixedly connected to the exhaust port of the first air pump. One end of the air inlet pipe is connected to one end of the cooling roller via a bearing. An exhaust port is located at the end of the cooling roller away from the air inlet pipe. A gas collection box is provided between one end of the cooling roller and one inner wall of the mounting base. The gas collection box communicates with the exhaust port, and an exhaust hole is provided at the bottom of the gas collection box. A dust removal mechanism is located below the cooling roller. An adjustment mechanism is located directly below the dust removal mechanism. The corona structure for thin film processing provided by this utility model has the technical effect of effectively removing the heat generated by the thin film body during the corona treatment process, improving the processing quality and cooling efficiency of the thin film body. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a corona structure for thin film processing proposed in this utility model.

[0015] Figure 2 This is a schematic diagram of the cooling mechanism of a corona structure for thin film processing proposed in this utility model.

[0016] Figure 3 This is a schematic diagram of a dust removal mechanism based on a corona structure for thin film processing, as proposed in this utility model.

[0017] Figure 4 This is a schematic diagram of a spiral baffle structure for a corona structure used in thin film processing, as proposed in this utility model.

[0018] Figure 5 This is a schematic diagram of the adjustment mechanism for a corona structure used in thin film processing, as proposed in this utility model.

[0019] Figure 6 This is a schematic diagram of a collection component for a corona structure used in thin film processing, as proposed in this utility model.

[0020] In the attached diagram: 1. Mounting base; 2. Outlet roller; 3. Film body; 4. Connecting pipe; 5. Air inlet pipe; 6. First air pump; 7. Corona roller; 8. Suction pump; 9. Collection box; 10. Mounting rod; 11. Motor; 12. Air collection box; 13. Spiral baffle; 14. Mounting plate; 15. Mounting frame; 16. Inlet roller; 17. Connecting frame; 18. Dust suction brush; 19. Cooling roller; 20. Condenser pipe; 21. Mounting hole; 22. Mounting pipe; 23. Return spring; 24. Adjusting rod; 25. Cleaning box. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] The corona structure disclosed in this utility model for thin film processing is mainly applied in scenarios where, during the thin film processing, the surface of the film treated with corona may become severely sticky on the pressure roller, and the temperature will rise, resulting in excessively high temperature of the contact pressure roller. Excessive viscosity and temperature can cause the film to become uneven, wrinkled, or stick to the pressure roller, thereby affecting the production quality and efficiency of the film.

[0023] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4A corona structure for thin film processing includes a mounting base 1 and a thin film body 3. The inner wall of one opposite side of the mounting base 1 is provided with an inlet roller 16, an outlet roller 2, a corona roller 7, and a cooling roller 19. It also includes a cooling mechanism located inside the cooling roller 19. The cooling mechanism includes a motor 11. A mounting groove is formed on one inner wall of the mounting base 1, and the motor 11 is mounted on the inner wall of the mounting groove. The output shaft of the motor 11 is fixedly connected to one end of the cooling roller 19. The cooling roller 19 has a hollow structure, and its interior is provided with a condenser tube 20 and a spiral baffle 13. The outer wall of the 3 has several mounting holes 21. A first air pump 6 is installed on one side of the outer wall of the mounting base 1. An air inlet pipe 5 is fixedly connected to the exhaust port of the first air pump 6. One end of the air inlet pipe 5 is connected to one end of the cooling roller 19 through a bearing. An exhaust port is opened at the end of the cooling roller 19 away from the air inlet pipe 5. An air collection box 12 is provided between one end of the cooling roller 19 and one side of the inner wall of the mounting base 1. The air collection box 12 communicates with the exhaust port. An exhaust hole is opened at the bottom of the air collection box 12. Dust removal mechanism: located below the cooling roller 19. Adjustment mechanism: located directly below the dust removal mechanism.

[0024] It should be noted that the output shaft of the motor 11 passes through the air collection box 12. The air collection box 12 is connected to the cooling roller 19 through a bearing. When the cooling roller 19 rotates, the air that has absorbed heat can be discharged from the exhaust port into the interior of the air collection box 12 and then discharged from the exhaust hole.

[0025] The outer wall of the spiral baffle 13 abuts against the inner circumferential wall of the cooling roller 19. This design forms a continuous spiral flow channel, so that when cold air is used as the cooling medium, it will flow continuously in a spiral shape along the inner circumferential wall of the cooling roller 19 under the guidance of the spiral baffle 13. This flow mode not only increases the contact area between the cooling medium and the inner wall of the cooling roller 19, but also enhances the turbulence and mixing of the fluid, thereby improving the heat exchange efficiency.

[0026] Specifically, the film body 3 enters the processing flow starting from the inlet roller 16. The function of the inlet roller 16 is to smoothly introduce the film body 3 into the corona treatment area. During the transmission of the film body 3, it undergoes corona treatment when passing the corona roller 7. After corona treatment, the temperature of the film body 3 will rise. The motor 11 drives the cooling roller 19 to rotate through the output shaft. The surface of the cooling roller 19 is in contact with the film body 3. The first air pump 6 introduces external gas (such as air) into the cooling roller 19 through the air inlet pipe 5. Then, the cooling medium (such as water or...) in the condenser pipe 20... The refrigerant carries away heat through circulation, while the spiral baffle 13 enhances the disturbance and heat exchange effect of the cooling medium, ensuring that the film body 3 receives a uniform temperature distribution during the cooling process and avoiding local overheating or insufficient cooling. After being cooled by the condenser tube 20, the hot air is discharged from the exhaust port. The gas collection box 12 is used to collect and export these cooled gases to prevent them from accumulating inside the cooling roller 19. This device can effectively remove the heat generated by the film body 3 during the corona treatment, improving the processing quality and cooling efficiency of the film body 3.

[0027] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6 In a preferred embodiment, the dust removal mechanism includes a connecting frame 17. Several dust suction brushes 18 are provided on the top outer wall of the connecting frame 17. The dust suction brushes 18 have a hollow internal structure. Several fixing grooves are provided on one outer wall of the connecting frame 17. The inner wall of the fixing groove is provided with an installation tube 22. The installation tube 22 communicates with the interior of the dust suction brushes 18. A connection port is provided on the outer wall of the mounting base 1 away from the motor 11. One end of several installation tubes 22 passes through the connection port and is provided with a connecting tube 4. An air pump 8 is installed at one end of the connecting tube 4. A collection component is provided at the exhaust port of the air pump 8.

[0028] The collection component includes a collection box 9, and a cleaning box 25 is slidably connected inside the collection box 9. Several air vents are provided on both sides of the outer wall of the collection box 9 and the cleaning box 25 near the top. The cleaning box 25 is a semi-enclosed structure, and a handle is fixedly connected to one side of the outer wall of the cleaning box 25.

[0029] It should be noted that a filter screen is installed on the inner wall of the air outlet to prevent dust from leaking out directly from the air outlet, but the filter screen is not shown in the attached drawing.

[0030] In the specific implementation process, the vacuum brush 18 sucks in the impurities that are transmitted through the connecting pipe 4 and fall into the cleaning box 25. The cleaning box 25 is slidably connected inside the collection box 9 and can be easily pulled out and pushed in. The design of the cleaning box 25 should facilitate the collection and cleaning of impurities, while preventing impurities from leaking during the collection process. The air vent is set to ensure that when the air pump 8 is working, the air inside the collection box 9 and the cleaning box 25 can be smoothly discharged through these vents to avoid excessive resistance affecting the suction effect. At the same time, the air vent can also prevent the collection box 9 and the cleaning box 25 from being damaged due to excessive pressure.

[0031] The connecting frame 17 has an arc-shaped structure, and one end of several dust-collecting brushes 18 abuts against the outer circumference of the cooling roller 19. The arc-shaped connecting frame 17 can better fit the outer circumference of the cooling roller 19. The arc-shaped structure ensures that the dust-collecting brushes 18 can be evenly distributed on the circumference of the cooling roller 19, thereby achieving a comprehensive dust removal effect.

[0032] Specifically, during use, the vacuum pump 8 generates negative pressure through the connecting pipe 4, thereby driving the dust suction brush 18 to perform dust suction. When the cooling roller 19 rotates in place as driven by the motor 11, several dust suction brushes 18 clean the surface of the cooling roller 19. Since there are many dust suction brushes 18 and they are evenly distributed, they can fully cover the film surface and effectively remove dust, oil and other impurities. Since the mounting pipe 22 is connected to the inside of the dust suction brush 18, the impurities collected by the dust suction brush 18 can be transferred to the collection component for centralized processing through the mounting pipe 22, thereby quickly removing impurities from the surface of the film body 3.

[0033] Reference Figure 3 and Figure 5 In a preferred embodiment, the adjustment mechanism includes a mounting rod 10 and three adjusting rods 24. The mounting rod 10 is located between the inner walls of opposite sides of the mounting base 1. Three mounting plates 14 are fixedly connected to the cylindrical outer wall of the mounting rod 10. A mounting frame 15 is fixedly connected to the top outer wall of the mounting plate 14. The adjusting rod 24 is threadedly connected to the mounting frame 15. A return spring 23 is provided on the top inner wall of the mounting frame 15. One end of the adjusting rod 24 is connected to the bottom outer wall of the connecting frame 17 through a bearing. A limiting block is provided on the circumferential outer wall of the adjusting rod 24. One end of the return spring 23 is fixedly connected to the top outer wall of the limiting block.

[0034] The cooling roller 19 is located between the exit roller 2 and the corona roller 7, which ensures that the film body 3 is cooled immediately after leaving the corona roller 7. This helps to reduce the extended processing time and increased energy consumption caused by heat accumulation.

[0035] Specifically, when it is necessary to adjust the height of the connecting frame 17, its position within the mounting frame 15 can be changed by rotating the adjusting rod 24. Since the adjusting rod 24 is connected to the mounting frame 15 by a thread, rotating the adjusting rod 24 will cause it to move up and down within the mounting frame 15. The up and down movement of the adjusting rod 24 will drive the connecting frame 17 to move up and down, thereby achieving the adjustment of the height of the connecting frame 17. When an external force is applied to the connecting frame 17 and causes it to move, the adjusting rod 24 will move accordingly and compress the return spring 23. When the external force disappears, the return spring 23 will release its elasticity, pushing the limit block and the adjusting rod 24 to move upward, so that the connecting frame 17 returns to its initial position.

[0036] Working principle: During use, the film body 3 enters the processing flow starting from the inlet roller 16. The function of the inlet roller 16 is to smoothly introduce the film body 3 into the corona treatment area. During the transmission of the film body 3, when the film body 3 passes through the corona roller 7, it will undergo corona treatment. After the corona treatment, the temperature of the film body 3 will rise. The motor 11 drives the cooling roller 19 to rotate through the output shaft. The surface of the cooling roller 19 is in contact with the film body 3. The first air pump 6 introduces external gas (such as air) into the cooling roller 19 through the air inlet pipe 5. Then, the cooling medium (such as water or refrigerant) in the condenser 20 carries away the heat through circulation. The spiral baffle 13 enhances the disturbance and heat exchange effect of the cooling medium, ensuring that the film body 3 receives a uniform temperature distribution during the cooling process, avoiding local overheating or insufficient cooling. After being cooled by the condenser 20, the hot air is discharged from the exhaust port. The gas collection box 12 is used to collect and export these cooled gases to prevent them from accumulating inside the cooling roller 19.

[0037] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A corona structure for thin film processing, comprising a mounting base (1) and a thin film body (3), characterized in that, The mounting base (1) is provided with an inlet roller (16), an outlet roller (2), a corona roller (7), and a cooling roller (19) on opposite inner walls, and also includes: Cooling mechanism: Located inside the cooling roller (19), the cooling mechanism includes a motor (11). An installation groove is provided on one inner wall of the mounting base (1). The motor (11) is installed on the inner wall of the installation groove. The output shaft of the motor (11) is fixedly connected to one end of the cooling roller (19). The cooling roller (19) has a hollow structure. A condenser tube (20) and a spiral baffle plate (13) are provided inside the cooling roller (19). Several installation holes (21) are provided on the outer wall of the spiral baffle plate (13). A first air pump (6) is installed on one outer wall of the mounting base (1). An air inlet pipe (5) is fixedly connected to the exhaust port of the first air pump (6). One end of the air inlet pipe (5) is connected to one end of the cooling roller (19) through a bearing. An exhaust port is opened at the end of the cooling roller (19) away from the air inlet pipe (5). An air collection box (12) is provided between one end of the cooling roller (19) and one inner wall of the mounting base (1). The air collection box (12) is connected to the exhaust port. An exhaust hole is opened at the bottom of the air collection box (12). Dust removal mechanism: located below the cooling roller (19); Adjustment mechanism: located directly below the dust removal mechanism.

2. The corona structure for thin film processing according to claim 1, characterized in that, The outer wall of the spiral baffle (13) abuts against the inner circumferential wall of the cooling roller (19).

3. The corona structure for thin film processing according to claim 2, characterized in that, The dust removal mechanism includes a connecting frame (17), and a number of dust suction brushes (18) are provided on the top outer wall of the connecting frame (17). The dust suction brushes (18) have a hollow structure inside. A number of fixing grooves are provided on one side outer wall of the connecting frame (17). An installation tube (22) is provided on the inner wall of the fixing groove. The installation tube (22) communicates with the inside of the dust suction brushes (18). A connection port is provided on the outer wall of the mounting base (1) away from the motor (11). One end of a number of installation tubes (22) passes through the connection port and is provided with a connecting tube (4). An air pump (8) is installed on one end of the connecting tube (4). A collection component is provided at the exhaust port of the air pump (8).

4. The corona structure for thin film processing according to claim 3, characterized in that, The collection assembly includes a collection box (9), and a cleaning box (25) is slidably connected inside the collection box (9). Several air vents are provided on both sides of the outer wall of the collection box (9) and the cleaning box (25) near the top. The cleaning box (25) is a semi-closed structure, and a handle is fixedly connected to one side of the outer wall of the cleaning box (25).

5. A corona structure for thin film processing according to claim 3, characterized in that, The connecting frame (17) has an arc-shaped structure, and one end of each of the vacuum brushes (18) abuts against the outer circumferential wall of the cooling roller (19).

6. A corona structure for thin film processing according to claim 5, characterized in that, The adjustment mechanism includes a mounting rod (10) and three adjusting rods (24). The mounting rod (10) is located between the inner walls of opposite sides of the mounting base (1). Three mounting plates (14) are fixedly connected to the cylindrical outer wall of the mounting rod (10). A mounting frame (15) is fixedly connected to the top outer wall of the mounting plate (14). The adjusting rod (24) is connected to the mounting frame (15) by a thread. A return spring (23) is provided on the top inner wall of the mounting frame (15). One end of the adjusting rod (24) is connected to the bottom outer wall of the connecting frame (17) by a bearing. A limiting block is provided on the circumferential outer wall of the adjusting rod (24). One end of the return spring (23) is fixedly connected to the top outer wall of the limiting block.

7. The corona structure for thin film processing according to claim 1, characterized in that, The cooling roller (19) is located between the output roller (2) and the corona roller (7).

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