Double-sided film coating device for aluminum coil production

Abstract

This invention relates to the field of aluminum coil coating equipment, and more particularly to a double-sided coating equipment for aluminum coil production. It includes a shaping shell, with a coating shell on the other side of the shaping shell. A film roll symmetrically distributed vertically is positioned between the shaping shell and the coating shell. The coating shell is rotatably connected to two symmetrically distributed mounting frames. First mounting blocks symmetrically distributed on the same mounting frame are slidably connected to a first pressure plate, and second mounting blocks symmetrically distributed on the same mounting frame are slidably connected to a second pressure plate. Two symmetrically distributed telescopic rods are provided on the mounting frames. This invention uses the differential speed movement of the first and second pressure plates to relax the film in the damaged area. The telescopic rods then lift and fold the relaxed film onto the undamaged film surface. Without additional operation, this ensures film coverage on the aluminum surface throughout the entire processing, reducing unplanned downtime caused by coil changes or repairs.

Description

Technical Field

[0001] This invention relates to the field of aluminum coil coating equipment technology, and more particularly to a double-sided coating equipment for aluminum coil production. Background Technology

[0002] Aluminum coils are an important intermediate product in the aluminum processing industry, widely used in packaging, construction, machinery, electronics and other fields. Because aluminum has a low surface hardness and is prone to scratches, it is usually necessary to coat its surface with a plastic film before leaving the factory. This reduces the probability of wear and tear on the surface of the aluminum coil during production, transportation, storage and subsequent processing. It also reduces the probability of oil, dust and other contaminants on the surface of the aluminum coil during storage and handling, maintaining the cleanliness and aesthetics of the aluminum coil surface and providing good surface conditions for subsequent processing.

[0003] Currently, aluminum coil coating equipment typically includes an unwinding mechanism, a coating mechanism, a compaction mechanism, and a rewinding mechanism. During normal coating, the film roll is mounted on the unwinding mechanism. As the aluminum coil passes through the coating mechanism at a certain speed, the film is stretched and adhered to the surface of the aluminum coil. The compaction rollers then press the film to ensure full adhesion to the aluminum coil surface. In actual production, the film roll may experience localized damage or even breakage due to its own quality, improper tension control, or irregular aluminum coil surface. If coating is still performed when the film is damaged, the coated aluminum coil surface will be exposed, losing the film's scratch and oxidation protection. During subsequent transportation or stamping, the exposed areas are prone to scratches, adhesions, or oxidation discoloration, affecting the normal use of the aluminum. Therefore, the entire coating production line must be stopped first, and the damaged areas of the film must be repaired before the equipment can be restarted. This process often requires multiple people and is time-consuming, impacting the overall coating process. Summary of the Invention

[0004] In order to overcome the shortcomings of existing aluminum coil coating equipment, the present invention provides a double-sided coating device for aluminum coil production.

[0005] The technical solution of the present invention is as follows: a double-sided coating device for aluminum coil production, comprising a shaping shell, an aluminum coil being disposed on one side of the shaping shell for leveling the aluminum material released from the aluminum coil, and an adhesive coating module being disposed inside the shaping shell; a coating shell being disposed on the other side of the shaping shell, and a traction device for moving the aluminum coil being disposed inside the coating shell; a film roll symmetrically distributed vertically between the shaping shell and the coating shell; two extrusion rollers symmetrically distributed vertically inside the coating shell; two symmetrically distributed mounting frames being rotatably connected to the coating shell; a first mounting block and a second mounting block symmetrically distributed on the mounting frames; a first pressing plate being slidably connected to the first mounting blocks symmetrically distributed on the same mounting frame; a second pressing plate being slidably connected to the second mounting blocks symmetrically distributed on the same mounting frame; two telescopic rods symmetrically distributed on the mounting frames; and a driving assembly being disposed on the mounting frames for changing the positions of the corresponding first pressing plate and the corresponding second pressing plate.

[0006] Furthermore, the second clamping plate has an inclined surface on the side closest to the first clamping plate.

[0007] Furthermore, the drive assembly includes two symmetrically distributed first electric slide rails, which are disposed inside the mounting bracket. A first electric slider and a second electric slider are mounted on the first electric slide rails. The first electric slider is fixedly connected to its corresponding first mounting block, and the second electric slider is fixedly connected to its corresponding second mounting block. The first mounting block is rotatably connected to a first electric rotating shaft, and the second mounting block is rotatably connected to a second electric rotating shaft. Both the first and second electric rotating shafts are provided with external threads. The first electric rotating shaft is threadedly connected to the first pressure plate through its external thread, and the second electric rotating shaft is threadedly connected to the second pressure plate through its external thread.

[0008] Furthermore, the first pressing plate is rotatably connected to the guide roller.

[0009] Furthermore, both the first mounting block and the second mounting block are rotatably connected to guide rollers to reduce friction during film movement.

[0010] Furthermore, the distance between two symmetrically distributed first mounting blocks is the same as the distance between two symmetrically distributed second mounting blocks, and this distance is not less than the width of the aluminum coil.

[0011] Furthermore, the mounting frame is equipped with two symmetrically distributed second electric slide rails, and a third electric slider is mounted on the second electric slide rails. The mounting frame is slidably connected to a movable frame, and the movable frame is fixedly connected to both of the third electric sliders. The movable frame is rotatably connected to two symmetrically distributed third electric rotating shafts, and the third electric rotating shafts are provided with external threads. The movable frame is slidably connected to two symmetrically distributed moving blocks, and the moving blocks are threadedly connected to the external threads on the corresponding third electric rotating shafts. The moving blocks are fixedly connected to the fixing parts of the corresponding telescopic rods.

[0012] Furthermore, a fixing frame is provided between the shaping shell and the coating shell. Two electric push rods are fixedly connected to the fixing frame. A connecting ring is fixedly connected to the telescopic end of the electric push rod. A sliding block is slidably connected to the mounting frame. The telescopic end of the electric push rod is rotatably connected to the corresponding sliding block through the connecting ring on it.

[0013] Furthermore, the rotation center of the mounting bracket is located on the central axis corresponding to the extrusion roller.

[0014] Furthermore, it also includes two symmetrically distributed connecting frames, which are disposed between the fixed frame and the shaping shell. The connecting frames are fixedly connected to two symmetrically distributed limiting members, which are provided with through grooves. A flattening roller is disposed in the through grooves of the two limiting members of equal height. The mounting frame is used to press the corresponding flattening roller. The flattening roller is rotatably connected to symmetrically distributed rotating rings. A symmetrically distributed rotating rod is rotatably connected to the mounting frame. A return spring is fixedly connected between the rotating rod and the corresponding rotating ring.

[0015] The beneficial effects of the present invention are as follows: The present invention relaxes the film in the damaged area by the differential movement of the first pressing plate and the second pressing plate, and then the telescopic rod lifts the relaxed film and folds it onto the undamaged film surface. Without additional operation, the film coverage of the aluminum material surface can be ensured throughout the entire processing, reducing unplanned downtime caused by roll changing or repair.

[0016] During the reset process, the inclined surface on the second pressing plate actively applies downward pressure to the folded part of the film, reducing the curvature of the folded area. This makes the folded film more flat before entering the pressing roller, reducing the probability of displacement or wrinkling of the folded part due to excessive bulging when subjected to pressure. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the coated shell and mounting bracket of the present invention; Figure 3 This is a three-dimensional structural cross-sectional view of the coated shell of the present invention; Figure 4 This is a three-dimensional structural diagram of the limiting component and the flattening roller of the present invention; Figure 5 This is a three-dimensional structural diagram of the mounting bracket and the first electric slide rail of the present invention; Figure 6 This is a three-dimensional structural diagram of the mounting frame and movable frame of the present invention; Figure 7 This is a three-dimensional structural diagram of the first mounting block and the second mounting block of the present invention; Figure 8 This is a three-dimensional structural diagram of the first mounting block and the first electric rotating shaft of the present invention; Figure 9 This is a three-dimensional structural diagram of the movable frame and the third electric rotating shaft of the present invention; Figure 10 This is a three-dimensional structural diagram of the rotating rod and the return spring of the present invention.

[0018] In the attached diagrams: 1: Shaping shell, 2: Coated shell, 3: Extrusion roller, 4: Mounting frame, 5: First electric slide rail, 6: First electric slider, 7: Second electric slider, 8: First mounting block, 81: First electric rotating shaft, 9: Second mounting block, 91: Second electric rotating shaft, 10: First pressing plate, 101: Guide roller, 11: Second pressing plate, 12: Guide roller, 13: Second electric slide rail, 14: Third electric slider, 15: Moving frame, 16: Third electric rotating shaft, 17: Moving block, 18: Telescopic rod, 19: Fixed frame, 20: Electric push rod, 22: Sliding block, 23: Connecting frame, 24: Limiting component, 25: Flattening roller, 26: Rotating ring, 27: Rotating rod, 28: Reset spring. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0020] This embodiment provides a double-sided coating device for aluminum coil production, which aims to solve the problem that when the film is damaged during normal operation of existing aluminum coil coating devices, the entire coating production line must be stopped first, and then the damaged film roll must be replaced. The whole process is cumbersome and affects the overall coating process.

[0021] like Figures 1-9As shown, the device includes a shaping shell 1, on one side of which an aluminum coil is mounted. The shaping shell 1 is used to flatten the aluminum material released from the aluminum coil and contains an adhesive application module. On the other side of the shaping shell 1, a coating shell 2 is mounted, containing a traction device for moving the aluminum coil. A film roll symmetrically distributed vertically is positioned between the shaping shell 1 and the coating shell 2. Two extrusion rollers 3 symmetrically distributed vertically are located within the coating shell 2, used for hot-pressing the film and the aluminum coil. A rotating connection is made to the side of the coating shell 2 closest to the shaping shell 1. Two symmetrically distributed mounting brackets 4 are provided, with symmetrically distributed first mounting blocks 8 and symmetrically distributed second mounting blocks 9 on the mounting brackets 4. The symmetrically distributed first mounting blocks 8 on the same mounting bracket 4 are slidably connected to a first clamping plate 10, and the symmetrically distributed second mounting blocks 9 on the same mounting bracket 4 are slidably connected to a second clamping plate 11. Two symmetrically distributed telescopic rods 18 are provided on the mounting brackets 4, and a driving assembly is provided on the mounting brackets 4. The driving assembly is used to change the position of the corresponding first clamping plate 10 and the corresponding second clamping plate 11.

[0022] In the above scheme, a visual monitoring module (an existing device, not shown in the figure) is set on the left side of the shaping shell 1 to detect the integrity of the film released from the film roll (on which the film is wound) and to connect to the remote control terminal network; the shaping shell 1 is located to the right of the coating shell 2, and both are existing devices. The traction device inside the coating shell 2 is an existing device and is not shown in the figure. The aluminum roll (on which aluminum material is wound) is located to the right of the shaping shell 1; the upper and lower film rolls are located on the upper and lower sides of the aluminum roll, respectively, so that the film roll is tilted after being pulled out; the glue application module on the shaping shell 1 is an existing device used to apply glue to the upper and lower sides of the leveled aluminum roll; the two extrusion rollers 3 are symmetrically distributed vertically and are both located on the right side of the coating shell 2. An elastic layer is provided on the outside to adapt to the thickness change of the film after folding and to apply normal extrusion force to the film. To ensure the coating effect of the aluminum roll, the width of the film roll must be greater than the width of the aluminum roll. Both mounting brackets 4 are located between the shaping shell 1 and the coating shell 2. Under normal conditions, the mounting brackets 4 are tilted. The first mounting block 8 and the second mounting block 9 are located on the inner side of the mounting brackets 4, and both the first mounting block 8 and the second mounting block 9 are composed of a vertical part and a horizontal part. During the coating process, the film is located on the side of the horizontal part of the first mounting block 8 and the second mounting block 9 away from the aluminum roll. The first pressing plate 10 and the second pressing plate 11 are located on the side of the film away from the aluminum roll. The first pressing plate 10 is located to the right of the second pressing plate 11. Under normal conditions, neither of them is in contact with the film.

[0023] like Figures 6-8 As shown, the second pressing plate 11 has an inclined surface on the side close to the first pressing plate 10. The inclined surface on the upper second pressing plate 11 is inclined upward from left to right, and the inclined surface on the lower second pressing plate 11 is inclined downward from left to right, which is used to squeeze the folded film.

[0024] like Figures 5-9 As shown, the drive assembly includes two symmetrically distributed first electric slide rails 5. The first electric slide rails 5 are located inside the mounting bracket 4. A first electric slider 6 and a second electric slider 7 are mounted on the first electric slide rails 5. The first electric slider 6 is fixedly connected to its corresponding first mounting block 8, and the second electric slider 7 is fixedly connected to its corresponding second mounting block 9. The first mounting block 8 is rotatably connected to a first electric rotating shaft 81, and the second mounting block 9 is rotatably connected to a second electric rotating shaft 91. Both the first electric rotating shaft 81 and the second electric rotating shaft 91 are provided with external threads. The first electric rotating shaft 81 is threadedly connected to the first pressing plate 10 through its external thread, and the second electric rotating shaft 91 is threadedly connected to the second pressing plate 11 through its external thread. The first pressing plate 10 is rotatably connected to the guide roller 101.

[0025] In the above scheme, the first electric slide rail 5, the first electric rotating shaft 81 and the second electric rotating shaft 91 are all existing devices. The figure is only an example. The specific working process of the three is not described in detail in the text. During normal use, the first electric slider 6 and the second electric slider 7 on the first electric slide rail 5 can be controlled to move at different speeds. The first electric slide rail 5 is connected to the remote control terminal network. The guide roller 101 is located on the right side of the corresponding first pressing plate 10 and is used to reduce the friction between the film and the first pressing plate 10.

[0026] like Figure 5 , Figure 8 and Figure 9 As shown, both the first mounting block 8 and the second mounting block 9 are rotatably connected to guide rollers 12 to reduce friction during film movement. During the film coating process, the upper side of the lower film and the lower side of the upper film respectively contact the corresponding guide rollers 12 and drive the guide rollers 12 to rotate, thereby reducing the resistance to film movement.

[0027] like Figure 5 As shown, the distance between the two symmetrically distributed first mounting blocks 8 is the same as the distance between the two symmetrically distributed second mounting blocks 9, and this distance is not less than the width of the aluminum coil, so that the first mounting blocks 8 and the second mounting blocks 9 can avoid the aluminum material during rotation, ensuring the smooth progress of the overall coating work.

[0028] like Figures 6-9As shown, two symmetrically distributed second electric slide rails 13 are mounted on the mounting frame 4, and a third electric slider 14 is mounted on the second electric slide rail 13. The mounting frame 4 is slidably connected to a movable frame 15, and the movable frame 15 is fixedly connected to both third electric sliders 14. The movable frame 15 is rotatably connected to two symmetrically distributed third electric rotating shafts 16, and the third electric rotating shafts 16 are provided with external threads. The movable frame 15 is slidably connected to two symmetrically distributed moving blocks 17, and the moving blocks 17 are threadedly connected to the external threads on the corresponding third electric rotating shafts 16. The moving blocks 17 are fixedly connected to the fixing part of the corresponding telescopic rod 18.

[0029] In the above scheme, the second electric slide rails 13 on the two mounting brackets 4 are located on opposite sides of each other, and the moving frame 15 is located between the corresponding first mounting block 8 and the corresponding second mounting block 9; the third electric rotating shaft 16 is connected to the remote control terminal network; the driving method of the telescopic rod 18 is selected by the operator, and the text describes it as an example of electric drive, and the telescopic rod 18 is connected to the control terminal network. Under normal conditions, the telescopic end of the telescopic rod 18 is in the extended state. Initially, the telescopic rod 18 is located on the side of the film close to the aluminum material. After the telescopic ends of the two telescopic rods 18 on the same mounting bracket 4 are fully retracted, the minimum distance between the two telescopic ends is greater than the width of the film, so that the fixed part of the telescopic rod 18 does not collide with the aluminum material during the movement, and at the same time, the telescopic end of the telescopic rod 18 does not contact the film when it is not extended; the side of the moving frame 15 close to the aluminum material is flush with the side of the corresponding first electric slider 6 and the corresponding second electric slider 7 away from the aluminum material, ensuring that the moving frame 15 does not collide with the corresponding first electric slider 6 and the corresponding second electric slider 7 during the movement.

[0030] like Figures 2-5 As shown, a fixing frame 19 is provided between the shaping shell 1 and the film-coated shell 2. Two electric push rods 20 are fixedly connected to the fixing frame 19. A connecting ring is fixedly connected to the telescopic end of the electric push rod 20. A sliding block 22 is slidably connected to the mounting frame 4. The telescopic end of the electric push rod 20 is rotatably connected to the corresponding sliding block 22 through the connecting ring on it.

[0031] In the above scheme, the fixed frame 19 and all the parts connected to it are a group. In order to improve the uniformity of the force on the mounting frame 4, the fixed frame 19 and all the parts connected to it can be set as two groups symmetrically distributed front and back. The figure and text both use the example of setting only the front group. Under normal conditions, the electric push rods 20 are all in the extended state and the electric push rods 20 are connected to the remote control terminal network. The sliding block 22 is located on the outside of the mounting frame 4. Under normal conditions, the sliding block 22 can only move to the left along the corresponding mounting frame 4.

[0032] like Figure 3As shown, the rotation center of the mounting bracket 4 is located on the central axis of the corresponding extrusion roller 3, ensuring that the film can directly contact the aluminum material after the film rotates.

[0033] The specific workflow of the above scheme is as follows: When using this coating device to double-sided coat aluminum coils, the operator places the aluminum coil and two coating rolls (one for upper coating and one for lower coating) in the designated positions, and pulls the ends of the aluminum coil and the film ends of the two coating rolls into the coating housing 2. Then, the remote control terminal activates the traction device inside the coating housing 2, which moves the two films and the aluminum coil synchronously to the left, pulling the films and aluminum material from their respective rolls. Simultaneously, the operator activates the adhesive application module on the shaping housing 1 to apply adhesive to the surface of the aluminum material. During the movement of the aluminum material, the upper and lower extrusion rollers 3 respectively extrude the films on the upper and lower sides, pressing the films onto the upper and lower surfaces of the aluminum material.

[0034] As the aluminum material moves to the left, the shaping shell 1 shapes the aluminum material to ensure its flatness. Simultaneously, the remote control terminal activates the visual monitoring module to monitor the integrity of the upper and lower films in real time. During the film's movement, the adjacent sides of the upper and lower films contact the corresponding guide rollers 12, causing the guide rollers 12 to rotate and reducing the friction between the film and the first mounting block 8 and the second mounting block 9 (reducing resistance during film movement). When the visual monitoring module detects localized damage to the upper film, the following process is executed: When the left edge of the damaged part of the film approaches the right side of the second pressing plate 11, the remote control terminal drives the second pressing plate 11 to move along the vertical part of the two second mounting blocks 9 via the second electric rotating shaft 91. At the same time, the two second electric sliders 7 drive the corresponding second mounting blocks 9 and the corresponding second electric rotating shafts 91 to move to the left along the first electric slide rail 5 at the same speed as the film. During this process, the two second mounting blocks 9 jointly drive the second pressing plate 11 to move to the left synchronously until the second pressing plate 11 moves to a position that is tightly attached to the upper side of the film. Then, the remote control terminal stops the second electric rotating shaft 91. When the right edge of the damaged part of the film moves to the left side of the first pressing plate 10, the remote control terminal drives the first pressing plate 10 to press the film according to the above operation. Thus, the second pressing plate 11 and the first pressing plate 10, together with their respective two guide rollers 12, clamp and fix the left and right sides of the damaged part of the film.

[0035] During the clamping and fixing of the damaged part of the film, the remote control terminal drives the moving frame 15, the two third electric sliders 14 to move synchronously, the two third electric rotating shafts 16, the two moving blocks 17 and the two telescopic rods 18, so that the two telescopic rods 18 are always in the middle of the damaged part of the film. After the film is clamped and fixed, the remote control terminal increases the moving speed of the two first electric sliders 6, so that the moving speed of the first pressing plate 10 is greater than the moving speed of the second pressing plate 11, so that the film is in a relaxed state between the first pressing plate 10 and the second pressing plate 11. Then, the remote control terminal drives the corresponding moving blocks 17 through the two third electric rotating shafts 16 to drive the corresponding telescopic rods 18 to move upward along the corresponding moving frame 15. During the movement, the telescopic ends of the two telescopic rods 18 lift the relaxed part of the film upward, folding the damaged part of the film.

[0036] When the damaged film is re-tensioned under the combined action of the two telescopic rods 18, the first pressing plate 10, and the second pressing plate 11, and the second electric slider 7 and the first electric slider 6 are in contact (the telescopic rods 18 are located above the first mounting block 8 and the second mounting block 9), the remote control terminal shuts down the two third electric rotating shafts 16 and adjusts the moving speeds of the second electric slider 7 and the first electric slider 6 to be consistent. Then, the remote control terminal starts the electric push rod 20 on the left, so that the telescopic end of the electric push rod 20 drives the sliding block 22 on the front side to move downward through the connecting ring on it. The sliding block 22 drives the mounting frame 4 to rotate clockwise around its connection with the film shell 2 (during this process, the sliding block 22 slides relative to the mounting frame 4), reducing the angle between the mounting frame 4 and the horizontal plane. At the same time, the distance between the first pressing plate 10 and the second pressing plate 11 and the upper side of the aluminum material gradually decreases.

[0037] During the rotation of the mounting frame 4, the first clamping plate 10 drives the guide roller 101 on it to move synchronously, and the guide roller 101 squeezes the film, increasing the tilt angle of the part of the film on the right side of the guide roller 101. When the mounting frame 4 rotates to a horizontal state, the remote control terminal shuts off the electric push rod 20 on the left. At this time, the film located between the guide roller 101 and the extrusion roller 3 contacts the upper side of the aluminum material and adheres to the aluminum material with glue. The squeezing of the film by the first clamping plate 10 and the second clamping plate 11 further increases the contact between the two. The adhesion of the film (i.e., the left and right sides of the damaged area) to the upper side of the aluminum material is strengthened to achieve the purpose of pre-adhesion (at this time, the part of the film lifted by the two telescopic rods 18 is perpendicular to the horizontal plane). Then, the remote control terminal drives the two telescopic rods 18 to move to the right synchronously through the third electric slider 14, and at the same time drives the two telescopic rods 18 to move downward synchronously through the two third electric rotating shafts 16, thereby bending the lifted film with the lower edge of the left side of the first pressing plate 10 as the fulcrum, that is, folding the damaged area of ​​the film to the right side of the first pressing plate 10.

[0038] Once the right side of the folded film contacts the upper side of the undone film (at this point, the third electric slider 14 is located to the left of the first electric slider 6), the remote control terminal shuts off the two third electric rotating shafts 16 and starts the two telescopic rods 18, retracting the telescopic parts of the two telescopic rods 18 into their fixed parts. When the telescopic ends of the two telescopic rods 18 lose contact with the film, the remote control terminal drives the two telescopic rods 18 to move upward to their limit positions again through the two third electric rotating shafts 16 (during this process, the first electric slider 6 and the second electric slider 7 always move to the left along the mounting bracket 4) for subsequent use.

[0039] After the first electric slider 6 and the second electric slider 7 move to their extreme left positions relative to the mounting bracket 4 (during the subsequent leftward movement of the first electric slider 6 and the second electric slider 7, the contact position between the guide roller 101 and the film continuously changes, thus the tilt angle of the portion of the film located to the right of the guide roller 101 gradually decreases), the remote control terminal drives the first pressing plate 10 upward via the first electric rotating shaft 81 and the second pressing plate 11 upward via the second electric rotating shaft 91, causing them to lose contact with the film. Subsequently, the remote control terminal controls the first electric slider 6, the second electric slider 7, and the third electric slider 7... The movable slider 14 moves synchronously to the right, and during the movement, the inclined surface on the second pressing plate 11 applies downward pressure to the folded position of the film, reducing the curvature of the film after bending at the damaged point, thereby reducing the probability that the folded film will move due to pressure when it comes into contact with the pressing roller 3. Subsequently, when the folded film comes into contact with the pressing roller 3, the pressing roller 3 presses the folded film onto the aluminum material, ensuring the film coverage rate on the aluminum material surface throughout the entire processing, ensuring the integrity of the aluminum material's anti-corrosion and anti-scratch properties, without the need for additional operations, reducing unplanned downtime caused by roll changing or repair, and improving the overall operating rate of the equipment.

[0040] While the first electric slider 6 moves to the right along the mounting bracket 4, the remote control terminal controls the electric push rod 20 to drive the mounting bracket 4 to rotate counterclockwise, that is, to reset the mounting bracket 4 to its initial position. After the mounting bracket 4 and the first electric slider 6 are both reset to their initial positions, the remote control terminal shuts down the first electric slider 6, the second electric slider 7 and the electric push rod 20. At this time, the third electric slider 14 is still located to the left of the first electric slider 6. Subsequently, the remote control terminal controls the third electric slider 14 to reset relative to the mounting bracket 4 to its initial position. After resetting, the telescopic rod 18 is driven downward to its initial position through the third electric rotating shaft 16, and the telescopic end of the telescopic rod 18 is extended for subsequent use. Example 2

[0041] Based on Example 1, this example further optimizes a double-sided coating machine for aluminum coil production.

[0042] like Figures 1-7 and Figure 10 As shown, it also includes two symmetrically distributed connecting frames 23, which are disposed between the fixed frame 19 and the shaping shell 1. Two symmetrically distributed limiting members 24 are fixedly connected to the connecting frame 23. The limiting members 24 are provided with through grooves. A flattening roller 25 is disposed in the through grooves of the two limiting members 24 of equal height. The mounting frame 4 is used to press the corresponding flattening roller 25. The flattening roller 25 is rotatably connected to a symmetrically distributed rotating ring 26. A symmetrically distributed rotating rod 27 is rotatably connected to the mounting frame 4. A reset spring 28 is fixedly connected between the rotating rod 27 and the corresponding rotating ring 26.

[0043] In the above scheme, the two connecting frames 23 are symmetrically distributed front and back, and the two limiting members 24 on the same connecting frame 23 are symmetrically distributed vertically. The distance between the two limiting members 24 on the same connecting frame 23 gradually decreases from left to right, and the through grooves on the limiting members 24 are also inclined. The maximum distance between the two flattening rollers 25 is greater than the maximum distance between the two film rolls, so that the upper film tilts to the upper left and then to the lower left during the movement. The rotating rod 27 is located on the side of the corresponding mounting frame 4 away from the film shell 2, and the rotating rod 27 is located on the outside of the corresponding mounting frame 4. The reset spring 28 is always in a stretched and stored state.

[0044] The specific workflow of the above scheme is as follows: During the movement of the upper film driven by the traction device inside the film-coating shell 2, the upper film passes around and is supported by the upper flattening roller 25, causing the upper film to tilt first to the upper left and then to the lower left during the movement (providing sufficient allowance for subsequent film folding). At the same time, the flattening roller 25 flattens the film, reducing the probability of wrinkles when the film contacts the extrusion roller 3, ensuring the smooth progress of the pressing process. When the upper film is partially damaged, the movement process of the upper mounting frame 4 is as follows: After the remote control terminal moves the second pressing plate 11 downwards to fit tightly against the left side of the damaged area of ​​the film as described above, the remote control terminal drives the mounting frame 4 to rotate clockwise via the electric push rod 20 on the left. During the rotation, the mounting frame 4 presses the front and rear ends of the flattening roller 25, causing the flattening roller 25 to move to the lower right along the through grooves of the two limiting members 24. During the movement, the two reset springs 28 are stretched, and the pressing force of the flattening roller 25 on the upper film gradually decreases, causing the film between the first pressing plate 10 and the film roll to relax. When the mounting frame 4 rotates to a horizontal position, the remote control terminal stops the electric push rod 20 on the left. The damaged part of the film is folded according to the above operation. After folding, the remote control terminal resets the first pressing plate 10 and the second pressing plate 11 relative to the mounting frame 4 to the initial position according to the above operation. Then, the remote control terminal drives the mounting frame 4 to rotate counterclockwise through the electric push rod 20 on the left. During the rotation, the mounting frame 4 drives the flattening roller 25 to reset synchronously through the two reset tension springs 28. At the same time, during the movement, the flattening roller 25 lifts the film upward under the joint action of the two reset tension springs 28, so that the film leaves a margin between the extrusion roller 3 and the film roller, and the flattening roller 25 flattens the film for subsequent use.

[0045] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and its improved concept, should be covered within the scope of protection of this application.

Claims

1. A double-sided coating device for aluminum coil production, comprising a shaping shell (1), an aluminum coil being disposed on one side of the shaping shell (1), the shaping shell (1) being used to flatten the aluminum material released from the aluminum coil, and an adhesive coating module being disposed inside the shaping shell (1); a coating shell (2) being disposed on the other side of the shaping shell (1), a traction device for moving the aluminum coil being disposed inside the coating shell (2); film rolls symmetrically distributed vertically between the shaping shell (1) and the coating shell (2); and two extrusion rollers (3) symmetrically distributed vertically inside the coating shell (2), characterized in that... It also includes two symmetrically distributed mounting brackets (4), which are rotatably connected to the film shell (2). The mounting brackets (4) are provided with symmetrically distributed first mounting blocks (8) and symmetrically distributed second mounting blocks (9). The first mounting blocks (8) symmetrically distributed on the same mounting bracket (4) are slidably connected to a first pressing plate (10), and the second mounting blocks (9) symmetrically distributed on the same mounting bracket (4) are slidably connected to a second pressing plate (11). The mounting brackets (4) are provided with two symmetrically distributed telescopic rods (18). The mounting brackets (4) are provided with a driving assembly, which is used to change the position of the corresponding first pressing plate (10) and the corresponding second pressing plate (11).

2. The double-sided coating device for aluminum coil production according to claim 1, characterized in that, The second pressing plate (11) has an inclined surface on the side near the first pressing plate (10).

3. The double-sided coating device for aluminum coil production according to claim 1, characterized in that, The drive assembly includes two symmetrically distributed first electric slide rails (5). The first electric slide rails (5) are disposed on the inner side of the mounting bracket (4). A first electric slider (6) and a second electric slider (7) are mounted on the first electric slide rails (5). The first electric slider (6) is fixedly connected to its corresponding first mounting block (8). The second electric slider (7) is fixedly connected to its corresponding second mounting block (9). The first mounting block (8) is rotatably connected to a first electric rotating shaft (81). The second mounting block (9) is rotatably connected to a second electric rotating shaft (91). Both the first electric rotating shaft (81) and the second electric rotating shaft (91) are provided with external threads. The first electric rotating shaft (81) is threadedly connected to the first pressure plate (10) through its external threads. The second electric rotating shaft (91) is threadedly connected to the second pressure plate (11) through its external threads.

4. The double-sided coating device for aluminum coil production according to claim 3, characterized in that, The first pressing plate (10) is rotatably connected to the guide roller (101).

5. A double-sided coating device for aluminum coil production according to claim 3, characterized in that, Both the first mounting block (8) and the second mounting block (9) are rotatably connected to guide rollers (12) to reduce friction during film movement.

6. A double-sided coating device for aluminum coil production according to claim 5, characterized in that, The distance between two symmetrically distributed first mounting blocks (8) is the same as the distance between two symmetrically distributed second mounting blocks (9), and this distance is not less than the width of the aluminum coil.

7. A double-sided coating device for aluminum coil production according to claim 3, characterized in that, The mounting bracket (4) is equipped with two symmetrically distributed second electric slide rails (13), and a third electric slider (14) is installed on the second electric slide rails (13). The mounting bracket (4) is slidably connected to a movable bracket (15), and the movable bracket (15) is fixedly connected to both of the third electric sliders (14). The movable bracket (15) is rotatably connected to two symmetrically distributed third electric rotating shafts (16), and the third electric rotating shafts (16) are provided with external threads. The movable bracket (15) is slidably connected to two symmetrically distributed moving blocks (17), and the moving blocks (17) are threadedly connected to the external threads on the corresponding third electric rotating shafts (16). The moving blocks (17) are fixedly connected to the fixing part of the corresponding telescopic rod (18).

8. A double-sided coating device for aluminum coil production according to claim 7, characterized in that, A fixing frame (19) is provided between the shaping shell (1) and the film-coated shell (2). The fixing frame (19) is fixedly connected to two electric push rods (20). The telescopic end of the electric push rod (20) is fixedly connected to a connecting ring. The mounting frame (4) is slidably connected to a sliding block (22). The telescopic end of the electric push rod (20) is rotatably connected to the corresponding sliding block (22) through the connecting ring on it.

9. A double-sided coating device for aluminum coil production according to claim 8, characterized in that, The rotation center of the mounting bracket (4) is located on the central axis corresponding to the extrusion roller (3).

10. A double-sided coating device for aluminum coil production according to claim 8, characterized in that, It also includes two symmetrically distributed connecting frames (23), which are located between the fixed frame (19) and the shaping shell (1). The connecting frames (23) are fixedly connected to two symmetrically distributed limiting members (24). The limiting members (24) are provided with through grooves. Flattening rollers (25) are provided in the through grooves of the two limiting members (24) of equal height. The mounting frame (4) is used to squeeze the corresponding flattening rollers (25). The flattening rollers (25) are rotatably connected to symmetrically distributed rotating rings (26). The mounting frame (4) is rotatably connected to symmetrically distributed rotating rods (27). A reset spring (28) is fixedly connected between the rotating rods (27) and the corresponding rotating rings (26).

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