Press roll type antistatic coating machine for polyester film

Abstract

The utility model discloses a polyester film compression roller type antistatic coating machine, and belongs to the technical field of polyester film coating processes. Comprising a rack, a coating roller is rotationally arranged on the rack, a horizontal pressing roller is arranged on the rack, a horizontal pressing roller adjusting structure is arranged on the rack, the horizontal pressing roller adjusting structure is used for adjusting the distance between the horizontal pressing roller and the coating roller, a liquid supply box is fixedly arranged on the rack, and a liquid dipping box is arranged on the radial side of the coating roller; a water pump is fixedly arranged between the liquid dipping box and the liquid supply box, a collecting box is arranged on the rack and is of a cavity structure, a filter screen is arranged at an opening of the cavity structure, and a cleaning structure is arranged on the collecting box. According to the utility model, a traditional scraper is replaced by the horizontal compression roller, so that a polyester film can be effectively prevented from being scratched, the quality of the polyester film after subsequent coating is ensured, clotted coating liquid and impurities can be intercepted through the filter screen, waste of the coating liquid is avoided, and the utilization rate of raw materials is also improved.

Description

Technical Field

[0001] This utility model relates to a polyester film roller-type antistatic coating machine, belonging to the technical field of polyester film coating process. Background Technology

[0002] Polyester film holds a huge market share both domestically and internationally. With market development and changes, the application range of films is expanding. To meet market demands, film manufacturers are constantly improving production processes. By adding online coating to the film production line, they enhance specific properties of the film, such as scratch resistance and antistatic properties. This expands the application scenarios of polyester film beyond its base film, creating a wide variety of functional films. However, the original coating machines provided by Bruckner in Germany suffer from problems such as uneven coating, easy damage to the film and roller surfaces by the doctor blade, difficulty in operation, and waste of coating solution, resulting in substandard coated products. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a polyester film roller-type antistatic coating machine, which solves the problems of uneven coating, easy damage to the film surface and roller surface by the doctor blade, difficulty in operation, and waste of coating liquid in the original coating machine in the prior art, which leads to the problem that the coated product cannot meet the standards.

[0004] The technical problem to be solved by this utility model is achieved by the following technical solution: A frame is included, on which a coating roller is rotatably mounted; a horizontal pressure roller is mounted on the frame; a horizontal pressure roller adjustment structure is mounted on the frame to adjust the distance between the horizontal pressure roller and the coating roller; a liquid supply tank is fixedly mounted on the frame, storing coating liquid; a dipping tank is mounted on the radial side of the coating roller; a water pump is fixedly mounted between the dipping tank and the liquid supply tank; a collection box is mounted on the frame, having a hollow structure for collecting coating liquid; a filter screen is mounted at the opening of the hollow structure; and a cleaning structure is mounted on the collection box for cleaning the filter screen.

[0005] By adopting the above technical solution, when using this device, the water pump is first started to transport the coating liquid in the supply tank to the dipping tank and make it contact the coating roller. The coating roller is driven by an external power source to contact the polyester film and realize the transfer of the polyester film. When the coating roller rotates, it picks up the coating liquid in the dipping tank and then coats the polyester film. At the same time, the horizontal pressure roller adjustment structure is started to drive the horizontal pressure roller to adjust to a suitable position and scrape off the excess coating liquid during the coating process. The scraped coating liquid then flows towards the collection tank and is then transported to the cavity structure for storage through the filter screen. By replacing the traditional scraper with the horizontal pressure roller, scratches on the coating roller can be effectively avoided, ensuring the quality of the coated polyester film. The filter screen can intercept the clumps of coating liquid and impurities, improving the utilization rate of raw materials.

[0006] The present invention is further configured such that: the horizontal pressure roller adjustment structure includes two cylinders, the two cylinders are fixedly mounted on opposite sides of the frame, the output ends of the two cylinders are equipped with air rods, one end of the air rods is fixedly mounted with a connecting plate, and the connecting plate is rotatably connected to the end of the horizontal pressure roller.

[0007] By adopting the above technical solution, the cylinder is activated to push the air rod to move, and then the air rod pushes the connecting plate to move. Then the connecting plate drives the horizontal pressure roller to move horizontally, which facilitates the scraping off of excess coating liquid on the coating roller.

[0008] The present invention is further configured such that: electric push rods are fixedly installed on two sides of the frame that are the same as the cylinders; the output end of the electric push rod is equipped with a mounting rod; one end of the mounting rod is fixedly equipped with a mounting plate; and an upper pressure roller is rotatably installed between the two mounting plates.

[0009] By adopting the above technical solution, if a different coating liquid with a lower concentration is used due to production process requirements, the amount of coating liquid adhering to the polyester film will be relatively small. In this case, by starting the electric push rod to move the mounting rod, the mounting rod moves the mounting plate, the mounting plate moves the upper pressure roller vertically, and the upper pressure roller presses the polyester film onto the coating roller, so that the polyester film adheres better to the coating roller, which can effectively solve the problem of insufficient coating liquid adhesion.

[0010] This utility model is further configured as follows: the cleaning structure includes a cleaning brush slidably mounted on the filter screen, a sliding block fixedly mounted on the cleaning brush, and a drive assembly mounted on the frame. The drive assembly is used to drive the cleaning brush to clean the filter screen. The drive assembly includes a motor fixedly mounted on one side of the frame, and a threaded rod is provided at the output end of the motor. One end of the threaded rod extends through the collection box to the other side of the frame. The sliding block and the threaded rod are threadedly connected. A stirring component is provided inside the cavity structure and the liquid supply tank. The stirring component is used to stir the coating liquid. The stirring component includes a rotating shaft rotatably mounted inside the cavity structure and the liquid supply tank. Several stirring rods are fixedly mounted on the outer surface of the rotating shaft. Two drive shafts are provided on the outside of the frame. A bevel gear set is provided between one end of each drive shaft and the rotating shaft, and a bevel gear pair is provided between the other end of each drive shaft and the threaded rod.

[0011] By adopting the above technical solution, the starting motor drives the threaded rod to rotate. During the rotation of the threaded rod, the sliding block moves, and then the sliding block drives the cleaning brush to clean the filter screen, preventing the filter screen from becoming clogged and maintaining good filtration performance. At the same time, the threaded rod drives the bevel gear pair to move, which in turn drives the two transmission shafts to rotate. Then, the two transmission shafts drive the bevel gear set to move, and then the bevel gear set drives the rotating shaft to rotate. The rotating shaft then drives the stirring rod to stir the coating liquid in the cavity structure and the liquid supply tank, preventing the coating liquid from settling after a long period of time.

[0012] The present invention is further configured such that: a protective cover is fixedly installed on the outside of the frame, the protective cover being used to enclose the bevel gear pair and bevel gear set.

[0013] By adopting the above technical solution and using a protective cover, the safety of the device is ensured, preventing workers from accidentally touching the bevel gear and causing injury.

[0014] The present invention is further provided with: a support leg fixedly installed on the frame.

[0015] By adopting the above technical solution, the entire frame is supported by support legs.

[0016] The beneficial effects of this invention are as follows: When using this device, the water pump is first started to transport the coating liquid in the supply tank to the dipping tank and make it contact the coating roller. The coating roller is driven by an external power source to contact the polyester film, thereby transferring the polyester film. When the coating roller rotates, it picks up the coating liquid in the dipping tank and then coats the polyester film. At the same time, the horizontal pressure roller adjustment structure is started to drive the horizontal pressure roller to adjust to a suitable position and scrape off the excess coating liquid during the coating process. The scraped coating liquid then flows towards the collection tank and is then transported through the filter screen to the cavity structure for storage. By replacing the traditional scraper with the horizontal pressure roller, scratches on the coating roller can be effectively avoided, ensuring the quality of the coated polyester film. The filter screen can intercept clumps of coating liquid and impurities, improving the utilization rate of raw materials. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This utility model Figure 1 Enlarged view of point B in the middle;

[0020] Figure 4 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 5 This is a three-dimensional structural diagram of the collection box of this utility model;

[0022] Figure 6 This is a three-dimensional cross-sectional view of the collection box of this utility model;

[0023] Figure 7 This utility model Figure 6 Enlarged view of point A in the middle;

[0024] Figure 8 This utility model Figure 6 Enlarged view of point B in the middle;

[0025] Figure 9 This utility model Figure 6 Enlarged diagram of point C in the middle.

[0026] In the diagram: 1. Frame; 2. Coating roller; 3. Horizontal pressure roller; 4. Collection box; 5. Filter screen; 6. Liquid supply box; 7. Water pump; 8. Dipping tank; 401. Cavity structure; 801. Dipping tank; 1011. Cylinder; 1012. Air rod; 1013. Connecting plate; 1021. Electric push rod; 1022. Mounting rod; 1023. Mounting plate; 1024. Upper pressure roller; 1031. Cleaning brush; 1032. Sliding block; 1041. Motor; 1042. Threaded rod; 1051. Rotating shaft; 1052. Stirring rod; 1053. Drive shaft; 1054. Bevel gear set; 1055. Bevel gear pair; 1061. Protective cover; 1071. Support leg. Detailed Implementation

[0027] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0028] like Figure 1 and Figure 6 As shown, a polyester film roller-type antistatic coating machine includes a frame 1, a coating roller 2 rotatably mounted on the frame 1, a horizontal pressure roller 3 mounted on the frame 1, and a horizontal pressure roller adjustment structure mounted on the frame 1. The horizontal pressure roller adjustment structure adjusts the distance between the horizontal pressure roller 3 and the coating roller 2, causing the horizontal pressure roller 3 to reciprocate along the horizontal plane of the coating roller 2. A liquid supply tank 6 is fixedly mounted on the frame 1, with a liquid inlet. The liquid supply tank 6 stores coating liquid. A dipping tank 8 is located on the radial side of the coating roller 2, fixedly mounted on the frame 1. The dipping tank 8 has a dipping groove 801, and a portion of the coating roller 2 extends into the dipping tank. Inside tank 801, a water pump 7 is fixedly installed between the dipping tank 8 and the supply tank 6. The input end of the water pump 7 is fixedly equipped with an inlet pipe that extends into the interior of the supply tank 6. The other end of the water pump 7 is fixedly equipped with an outlet pipe that extends into the interior of the dipping tank 8. When the level of the coating liquid inside the dipping tank 8 is about to be lower than that of the coating roller 2, the water pump 7 is started to transport the coating liquid in the supply tank 6 into the dipping tank 8, so that the coating liquid in the dipping tank 8 can fully contact the coating roller 2 and avoid the phenomenon of coating interruption. The water pump 7 is equipped with a frequency converter, which controls the speed at which the water pump 7 provides the coating liquid to prevent water splashes and liquid spraying everywhere when replenishing the liquid.

[0029] like Figure 1 and Figure 6As shown, a collection box 4 is installed on the frame 1, and a drain pipe is installed on the collection box 4. The collection box 4 has a hollow structure 401 for collecting coating liquid. A filter screen 5 is installed at the opening of the hollow structure 401. A cleaning structure is installed on the collection box 4. The filter screen 5 and the hollow structure 401 are detachably fixed, and the detachable fixing includes, but is not limited to, snap-fit ​​and threaded connection. The filter screen 5 is snapped into place by protrusions on the filter screen 5 and slots in the hollow structure 401. The snap-fit ​​method allows the staff to easily disassemble, replace, and maintain the filter screen 5. The collection box 4 is equipped with a cleaning structure and a drain pipe.

[0030] like Figure 2 As shown, the horizontal pressure roller adjustment structure includes two cylinders 1011. The cylinders 1011 are connected to an external air source to provide power to the cylinders 1011. The two cylinders 1011 are fixedly installed on opposite sides of the frame 1. The output end of the two cylinders 1011 is equipped with a pneumatic rod 1012. One end of the pneumatic rod 1012 is fixedly equipped with a connecting plate 1013. The connecting plate 1013 is rotatably connected to the end of the horizontal pressure roller 3.

[0031] like Figure 3 As shown, electric push rods 1021 are fixedly installed on two sides of the frame 1, which are identical to those of cylinder 1011. The electric push rods 1021 are connected to an external power source. The output end of the electric push rods 1021 is equipped with a mounting rod 1022. One end of the mounting rod 1022 is fixedly equipped with a mounting plate 1023. An upper pressure roller 1024 is rotatably installed between the two mounting plates 1023. The upper pressure roller 1024 is located above the coating roller 2. The electric push rods 1021 drive the upper pressure roller 1024 to reciprocate along the vertical direction of the coating roller 2.

[0032] like Figures 5 to 9As shown, the cleaning structure includes a cleaning brush 1031 slidably mounted on the filter screen 5, a sliding block 1032 fixedly mounted on the cleaning brush 1031, and a drive assembly mounted on the frame 1. The drive assembly includes a motor 1041 fixedly mounted on one side of the frame 1, and a threaded rod 1042 powered at the output end of the motor 1041. One end of the threaded rod 1042 extends through the collection box 4 to the other side of the frame 1. The sliding block 1032 and the threaded rod 1042 are threadedly connected. The sliding block 1032 reciprocates along the extension direction of the threaded rod 1042, and the cleaning brush 1031 moves synchronously with the sliding block 1032. A stirring component is installed inside the cavity structure 401 and the liquid supply tank 6. The stirring component includes a rotating shaft 1051 rotatably mounted inside the cavity structure 401 and the liquid supply tank 6. Several stirring rods 1052 are fixedly mounted on the outer surface of the rotating shaft 1051. Two drive shafts 1053 are mounted on the outer side of the frame 1. A bevel gear set 1054 is mounted between one end of the two drive shafts 1053 and the rotating shaft 1051, and a bevel gear pair 1055 is mounted between the other end of the two drive shafts 1053 and the threaded rod 1042. The bevel gear pair 1055 and the threaded rod 1042 rotate synchronously. The drive shaft 1053 and the bevel gear set 1054 rotate synchronously. The bevel gear set 1054 and the drive shaft 1053 rotate synchronously. The rotating shaft 1051 and the bevel gear set 1054 rotate synchronously. The stirring rods 1052 and the rotating shaft 1051 rotate synchronously.

[0033] like Figure 2 As shown, a protective cover 1061 is fixedly installed on the outside of the frame 1. The protective cover 1061 is used to enclose the bevel gear pair 1055 and the bevel gear set 1054.

[0034] like Figure 1 As shown, a support leg 1071 is fixedly installed on the frame 1.

[0035] When using this device, the water pump 7 is first started to transport the coating liquid in the supply tank 6 to the dipping tank 8 and make contact with the coating roller 2. The coating roller 2 is driven by an external power source to contact the polyester film and transfer the polyester film. When the coating roller 2 rotates, it picks up the coating liquid in the dipping tank 8 and then coats the polyester film. At the same time, the horizontal pressure roller adjustment structure is started to drive the horizontal pressure roller 3 to adjust to a suitable position and scrape off the excess coating liquid during the coating process. The scraped coating liquid then flows towards the collection tank 4 and is then transported to the cavity structure 401 for storage through the filter screen 5. By replacing the traditional scraper with the horizontal pressure roller 3, scratches on the coating roller 2 can be effectively avoided, ensuring the quality of the coated polyester film. The filter screen 5 can intercept the clumps of coating liquid and impurities, improving the utilization rate of raw materials.

[0036] The cylinder 1011 is activated to push the air rod 1012 to move, and then the air rod 1012 pushes the connecting plate 1013 to move. Then the connecting plate 1013 drives the horizontal pressure roller 3 to move horizontally, which facilitates the scraping of excess coating liquid on the coating roller 2.

[0037] If a different coating liquid with a lower concentration is used due to production process requirements, the amount of coating liquid adhering to the polyester film will be relatively small. In this case, by starting the electric push rod 1021 to move the mounting rod 1022, the mounting rod 1022 will move the mounting plate 1023, and the mounting plate 1023 will move the upper pressure roller 1024 vertically. Then, the upper pressure roller 1024 will press the polyester film onto the coating roller 2, so that the polyester film can better adhere to the coating roller 2, which can effectively solve the problem of insufficient coating liquid adhesion.

[0038] The starting motor 1041 drives the threaded rod 1042 to rotate. During the rotation, the threaded rod 1042 drives the sliding block 1032 to move. Then, the sliding block 1032 drives the cleaning brush 1031 to clean the filter screen 5, preventing the filter screen 5 from becoming clogged and maintaining good filtration performance. At the same time, the threaded rod 1042 drives the bevel gear pair 1055 to move. The bevel gear pair 1055 drives the two drive shafts 1053 to rotate. Then, the two drive shafts 1053 drive the bevel gear set 1054 to move. Then, the bevel gear set 1054 drives the rotating shaft 1051 to rotate. Then, the rotating shaft 1051 drives the stirring rod 1052 to stir the coating liquid in the cavity structure 401 and the liquid supply tank 6, preventing the coating liquid from settling after a long time.

[0039] The protective cover 1061 prevents workers from accidentally touching the bevel gear and causing injury, thus ensuring the safety of the device.

[0040] The entire frame 1 is supported by support legs 1071.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A polyester film press roll type antistatic coater characterized by comprising: The utility model provides a coating liquid collecting device, including frame (1), the frame (1) is provided with coating roller (2) on rotation, the frame (1) is provided with horizontal pressure roller (3), the frame (1) is provided with horizontal pressure roller adjusting structure, horizontal pressure roller adjusting structure is used for adjusting horizontal pressure roller (3) and coating roller (2) distance, the frame (1) is fixedly provided with liquid supply tank (6), coating liquid is stored in liquid supply tank (6), the radial side of coating roller (2) is provided with dip tank (8), dip tank (8) and liquid supply tank (6) between fixedly provided with water pump (7), the frame (1) is provided with collection tank (4), collection tank (4) is hollow structure (401), hollow structure (401) is used for collecting coating liquid, the opening of hollow structure (401) is provided with filter screen (5), collection tank (4) is provided with cleaning structure, and cleaning structure is used for cleaning filter screen (5).

2. The polyester film press roller type antistatic coater according to claim 1, characterized by: The horizontal pressure roller adjusting structure includes two air cylinders (1011), two air cylinders (1011) are fixedly arranged on opposite sides of the frame (1), and the output ends of the two air cylinders (1011) are power-connected with air rods (1012). One end of each air rod (1012) is fixedly connected with a connecting plate (1013), and the connecting plate (1013) is rotationally connected with the end of the horizontal pressure roller (3).

3. The polyester film press roller type antistatic coater according to claim 1, characterized by: The same two sides of the frame (1) as the air cylinders (1011) are respectively fixedly provided with electric push rods (1021), and the output ends of the electric push rods (1021) are power-connected with mounting rods (1022). One end of each mounting rod (1022) is fixedly connected with a mounting plate (1023), and an upper pressure roller (1024) is rotationally arranged between the two mounting plates (1023).

4. The polyester film press roller type antistatic coater according to claim 1, characterized by: The cleaning structure includes a cleaning brush (1031) slidingly arranged on the filter screen (5), and the cleaning brush (1031) is fixedly connected with a sliding block (1032). The frame (1) is provided with a driving assembly for driving the cleaning brush (1031) to clean the filter screen (5).

5. The polyester film press roller type antistatic coater according to claim 4, characterized by: The driving assembly includes a motor (1041) fixedly arranged on one side of the frame (1), and the output end of the motor (1041) is power-connected with a threaded rod (1042). One end of the threaded rod (1042) extends through the collection tank (4) to the other side of the frame (1), the sliding block (1032) is screw-connected with the threaded rod (1042), and the hollow structure (401) and the liquid supply tank (6) are provided with stirring components for stirring the coating liquid.

6. The polyester film press roller type antistatic coater according to claim 5, characterized by: The stirring component comprises a rotating shaft (1051) arranged to rotate with the cavity structure (401) and the inside of the liquid tank (6), a plurality of stirring rods (1052) are fixedly arranged on the outer surface of the rotating shaft (1051), two transmission shafts (1053) are arranged on the outside of the frame (1), a bevel gear set (1054) is arranged between one end of each of the two transmission shafts (1053) and the rotating shaft (1051), and a bevel gear pair (1055) is arranged between the other end of each of the two transmission shafts (1053) and the threaded rod (1042).

7. The polyester film press roller type antistatic coater according to claim 1, characterized by: A protective cover (1061) is fixedly arranged on the outside of the frame (1), and the protective cover (1061) is used for closing the bevel gear pair (1055) and the bevel gear set (1054).

8. The polyester film press roller type antistatic coater according to claim 1, characterized by: Supporting legs (1071) are fixedly arranged on the frame (1).

Images