Automatic film covering device

Abstract

The utility model discloses an automatic film covering device and relates to the technical field of press punching. The device comprises an upper film covering subassembly and a lower film covering subassembly. And the upper film laminating subassembly comprises an upper film laminating driving unit and an upper film laminating driven unit which are respectively positioned on two sides of the press. The upper film covering driving unit comprises a first mounting frame, and a driving film covering roller and an upper film covering driving part used for driving the driving film covering roller to rotate are arranged on the first mounting frame. The upper film covering driven unit comprises a second installation frame and a driven film covering roller arranged on the second installation frame. And the lower film laminating subassembly comprises a lower film laminating driving unit and a lower film laminating driven unit which are respectively positioned on two sides of the press. The lower film covering driving unit comprises a first bottom frame, and a driving lower film roller and a lower film covering driving part used for driving the driving lower film roller to rotate are arranged on the first bottom frame. The lower film covering driven unit comprises a second bottom frame and a driven lower film roller arranged on the second bottom frame. The device not only can ensure that the plates are effectively protected, but also cannot reduce the overall efficiency of a production line.

Description

Technical Field

[0001] This utility model relates to the field of press stamping technology, specifically an automatic film coating device. Background Technology

[0002] During the production process of stamping lines and various presses, sheet metal often suffers surface scratches or wear due to the extrusion and friction of stamping dies. This damage not only affects the appearance quality of the product but may also reduce the mechanical properties of the sheet metal, leading to defective finished products. In some fields with high requirements for sheet metal surface quality, such as the production of heat exchanger plates, automotive bodies, appliance panels, and housings for precision electronic equipment, even minor surface defects can lead to product scrapping or the need for additional repairs, increasing production costs and process complexity.

[0003] Current solutions typically involve using protective films or lubricants during the stamping process. However, lubricants can pollute the production environment, and their effectiveness is limited by usage conditions and material properties. Therefore, the commonly used method is to protect the sheet metal by applying a protective film to the die on the press. While protective films offer good versatility and do not pollute the production environment, the frequent downtime required for replacement increases operational complexity and reduces the overall efficiency of the production line. Utility Model Content

[0004] To address the aforementioned issues, this application provides an automatic coating device that not only ensures the sheet metal is effectively protected throughout the stamping process but also does not reduce the overall efficiency of the production line.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] An automatic film coating device includes an upper film coating assembly and a lower film coating assembly;

[0007] The aforementioned film-coating assembly includes a film-coating active unit and a film-coating driven unit located on both sides of the press;

[0008] The active coating unit includes a first mounting frame, on which an active coating roller and an active coating drive component for driving the active coating roller to rotate are mounted.

[0009] The upper film-coating driven unit includes a second mounting frame and a driven upper film roller disposed on the second mounting frame;

[0010] The lower film assembly includes a lower film active unit and a lower film driven unit located on both sides of the press;

[0011] The lower coating active unit includes a first base frame, on which an active lower coating roller and a lower coating drive component for driving the active lower coating roller to rotate are provided;

[0012] The lower film-coating driven unit includes a second base frame and a driven lower film roller disposed on the second base frame.

[0013] Furthermore, the first mounting frame is provided with a first support block, the upper end of the first support block is provided with a first groove for accommodating the active film loading roller shaft, and the first support block is provided with a first cylinder for sealing the first groove.

[0014] The second mounting bracket is provided with a second support block, the upper end of the second support block is provided with a second groove for accommodating the driven upper film roller shaft, and the second support block is provided with a second cylinder for sealing the second groove;

[0015] The first base frame is provided with a third support block at each end. The upper end of the third support block is provided with a third groove for accommodating the active film lowering roller shaft. The third support block is provided with a third cylinder for sealing the third groove.

[0016] The second base frame is provided with a fourth support block at each end. The upper end of the fourth support block is provided with a fourth groove for accommodating the driven lower film roller shaft. The fourth support block is provided with a fourth cylinder for sealing the fourth groove.

[0017] Furthermore, the first mounting frame is provided with an active side first upper guide roller and an active side second upper guide roller arranged sequentially from top to bottom below the active upper film roller, and the second mounting frame is provided with a driven side first upper guide roller and a driven side second upper guide roller arranged sequentially from top to bottom below the driven upper film roller.

[0018] Furthermore, both ends of the active side second upper guide roller are connected to the first mounting frame via a first pull rod, and both ends of the driven side second upper guide roller are connected to the second mounting frame via a second pull rod. The heights of the active side second upper guide roller and the driven side second upper guide roller can be adjusted by adjusting the first pull rod and the second pull rod.

[0019] Furthermore, the inner side of the active film-drying roller is provided with an active side first lower guide roller and an active side second lower guide roller in sequence from bottom to top, and the inner side of the driven film-drying roller is provided with a driven side first lower guide roller and a driven side second lower guide roller in sequence from bottom to top.

[0020] Furthermore, a first upright is provided on the side of the first base frame near the press, and the first lower guide roller on the active side is provided on the first upright. A second upright is provided on the side of the second base frame near the press, and the first lower guide roller on the driven side is provided on the second upright. The second lower guide roller on the active side and the second lower guide roller on the driven side are installed on the lower film assembly of the press.

[0021] Furthermore, the second mounting frame is provided with an upper coating magnetic powder brake for providing braking force to the driven upper film roller, and the second base frame is provided with a lower coating magnetic powder brake for providing braking force to the driven lower film roller.

[0022] Furthermore, the first mounting frame is provided with a first ranging sensor for detecting the radius of the active upper film roller, the second mounting frame is provided with a second ranging sensor for detecting the radius of the driven upper film roller, the first base frame is provided with a third ranging sensor for detecting the radius of the active lower film roller, and the second base frame is provided with a fourth ranging sensor for detecting the radius of the driven lower film roller.

[0023] Furthermore, both the first and second base frames are equipped with wheels at their bottoms.

[0024] Furthermore, a first pin is provided on the first base frame, and a second pin is provided on the second base frame, with the female ends of both the first pin and the second pin located on the ground.

[0025] The beneficial effects of this utility model are:

[0026] The automatic coating device provided in this application can automatically pull up a protective film on the upper and lower sides of the sheet metal before stamping, preventing direct contact between the die and the sheet metal during stamping. This protects the sheet metal, reduces surface scratches and wear caused by die extrusion and friction, ensures the surface quality of the sheet metal, reduces the scrap rate caused by surface damage, and lowers material waste and rework costs. Furthermore, the automatic coating device provided in this application can achieve continuous automated coating without manual intervention, reducing downtime and labor costs, and improving the overall efficiency of the production line. Attached Figure Description

[0027] Figure 1 A front view of a press equipment equipped with an automatic film coating device;

[0028] Figure 2 A three-dimensional structural diagram of a press equipment equipped with an automatic film coating device;

[0029] Figure 3 This is a three-dimensional structural diagram of an automatic film coating device provided in an embodiment of this application;

[0030] Figure 4 for Figure 2 A magnified structural diagram of part A in the middle;

[0031] Figure 5 for Figure 3 A magnified structural diagram of part B in the middle section;

[0032] Figure 6 This is a three-dimensional structural diagram of the active unit with the overcoated membrane.

[0033] Figure 7 for Figure 6 A magnified structural diagram of section C;

[0034] Figure 8 This is a front view of the active unit with the overcoated membrane.

[0035] Figure 9 This is a three-dimensional structural diagram of the upper-film driven unit;

[0036] Figure 10 This is a three-dimensional structural diagram of the lower membrane active unit;

[0037] Figure 11 This is a three-dimensional structural diagram of the lower membrane driven unit;

[0038] Figure 12 This is a schematic diagram of the operation of an automatic film coating device provided in an embodiment of this application.

[0039] In the diagram: 1. Upper film coating active unit; 111. First support frame; 1121. First tie rod; 1122. First mounting block; 1123. First tightening bolt; 1124. First locking nut; 113. First crossbeam; 12. Active upper film roller; 131. Upper film coating drive motor; 132. First driven gear; 133. First driving gear; 14. First support block; 141. First cylinder; 15. First upper guide roller on the active side; 16. Second upper guide roller on the active side; 17. First distance sensor;

[0040] 2. Upper film coating driven unit; 211. Second support frame; 2121. Second tie rod; 2122. Second mounting block; 2123. Second tightening bolt; 2124. Second locking nut; 213. Second crossbeam; 22. Driven upper film roller; 23. Second support block; 231. Second cylinder; 24. Driven side first upper guide roller; 25. Driven side second upper guide roller; 261. Upper film coating magnetic powder brake; 262. Third driven gear; 263. Third driving gear; 27. Second ranging sensor;

[0041] 3. Lower film coating active unit; 31. First base frame; 311. First upright frame; 32. Active lower film roller; 331. Lower film coating drive motor; 332. Second driven gear; 333. Second driving gear; 34. Third support block; 341. Third cylinder; 35. First lower guide roller on the active side; 36. Second lower guide roller on the active side; 371. First support rod; 372. Third mounting block; 373. Third tightening bolt; 374. First locking block; 38. Third distance sensor; 39. First pin;

[0042] 4. Lower film coating driven unit; 41. Second base frame; 411. Second upright frame; 42. Driven lower film roller; 43. Fourth support block; 431. Fourth cylinder; 44. Driven side first lower guide roller; 45. Driven side second lower guide roller; 461. Second support rod; 462. Fourth mounting block; 463. Fourth tightening bolt; 464. Second locking block; 471. Lower film coating magnetic powder brake; 472. Fourth driven gear; 473. Fourth driving gear; 48. Fourth distance sensor; 49. Second pin;

[0043] 5. Press; 51. Upper mold assembly; 52. Lower mold assembly;

[0044] 6. Protective film;

[0045] 7. Sheet metal. Detailed Implementation

[0046] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be described in detail below with reference to the accompanying drawings. The described embodiments are merely a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort should fall within the protection scope of this application.

[0047] For ease of description, the coordinate system is defined as follows: Figure 1 As shown, the left and right directions are horizontal, the front and back directions are vertical, and the up and down directions are vertical.

[0048] like Figure 1 and Figure 3 As shown, an automatic coating device includes an upper coating assembly and a lower coating assembly, which are located on the upper and lower sides of the sheet metal 7 to be pressed, respectively. The upper coating assembly includes an upper coating active unit 1 and an upper coating driven unit 2 located on both sides of the press 5, and the lower coating assembly includes a lower coating active unit 3 and a lower coating driven unit 4 located on both sides of the press 5.

[0049] In one specific implementation, the upper film coating active unit 1 and the lower film coating active unit 3 are located on the unloading side of the press 5; the upper film coating driven unit 2 and the lower film coating driven unit 4 are located on the loading side of the press 5.

[0050] like Figure 6 As shown, the active film coating unit 1 includes a first mounting frame, which is detachably and fixedly connected to the upper mold assembly 51 of the press 5. The first mounting frame is equipped with an active film coating roller 12 and an active film coating drive component for driving the active film coating roller 12 to rotate.

[0051] As one specific implementation method, such as Figure 6 and Figure 8 As shown, in this embodiment, the first mounting frame includes two first support frames 111. The active film-applying roller 12 is located between the two first support frames 111, and both ends of the active film-applying roller 12 are rotatably connected to the first support frames 111. The film-applying driving component includes an film-applying driving motor 131 mounted on the first mounting frame. The power output shaft of the film-applying driving motor 131 is connected to the roller shaft of the active film-applying roller 12 via a first transmission mechanism. For example, the first transmission mechanism is a gear transmission. The first transmission mechanism includes a first driven gear 132 mounted on the roller shaft of the active film-applying roller 12. Below the first driven gear 132, a first driving gear 133 meshes with the first driven gear 132. Both ends of the gear shaft of the first driving gear 133 are rotatably connected to the support frames mounted on the first mounting frame via bearing assemblies. The power output shaft of the film-applying driving motor 131 is connected to the gear shaft of the first driving gear 133 via a coupling.

[0052] like Figure 9 As shown, the upper film-coating driven unit 2 includes a second mounting bracket, which is detachably and fixedly connected to the upper mold assembly 51 of the press 5. A driven upper film roller 22 is mounted on the second mounting bracket.

[0053] As one specific implementation method, such as Figure 9 As shown, the second mounting frame in this embodiment includes two second support frames 211, the driven upper film roller 22 is located between the two second support frames 211, and the two ends of the driven upper film roller 22 are respectively rotatably connected to the second support frames 211.

[0054] like Figure 10As shown, the lower film covering active unit 3 includes a first base frame 31, on which an active lower film roller 32 and a lower film covering drive component for driving the active lower film roller 32 to rotate are provided.

[0055] In one specific embodiment, the lower film-coating drive component includes a lower film-coating drive motor 331 mounted on the first base frame 31. The power output shaft of the lower film-coating drive motor 331 is connected to the roller shaft of the active lower film roller 32 via a second transmission mechanism. For example, the second transmission mechanism employs gear transmission. The second transmission mechanism includes a second driven gear 332 mounted on the roller shaft of the active lower film roller 32. Below the second driven gear 332, a second driving gear 333 meshes with the second driven gear 332. Both ends of the gear shaft of the second driving gear 333 are rotatably connected to a support frame mounted on the first base frame 31 via bearing assemblies. The power output shaft of the lower film-coating drive motor 331 is connected to the gear shaft of the second driving gear 333 via a coupling.

[0056] like Figure 11 As shown, the lower film-coating driven unit 4 includes a second base frame 41, on which a driven lower film roller 42 is provided.

[0057] like Figure 12 As shown, one end of the protective film 6 located on the upper side of the sheet 7 is wound around the driven upper film roller 22, and the other end of the protective film 6 passes over the upper die assembly 51 of the press 5 from the bottom and is wound around the active upper film roller 12. One end of the protective film 6 located on the lower side of the sheet 7 is wound around the driven lower film roller 42, and the other end of the protective film 6 passes over the lower die assembly of the press 5 from the top and is wound around the active lower film roller 32. When the upper film covering drive component and the lower film covering drive component are activated, they can drive the active upper film roller 12 and the active lower film roller 32 to rotate, thereby winding the old protective film 6 onto the active upper film roller 12 and the active lower film roller 32. At the same time, the driven upper film roller 22 and the driven lower film roller 42 will rotate synchronously under the traction of the protective film 6, thereby completing the old film roll-up and the new film unfolding.

[0058] Furthermore, to facilitate the replacement of the active film feeding roller 12, such as Figure 5 and Figure 6As shown, the upper end of the first support frame 111 is provided with a first support block 14 for supporting the roller shaft of the active film-applying roller 12. The upper end of the first support block 14 is provided with a first groove for accommodating the roller shaft of the active film-applying roller 12. A first cylinder 141 is provided on the first support block 14 at the opening of the first groove, and the first cylinder 141 is perpendicular to the active film-applying roller 12. When the piston rod of the first cylinder 141 retracts, the first groove is in the open state, and the active film-applying roller 12 can be removed from the first mounting frame. When the piston rod of the first cylinder 141 extends, the opening end of the first groove is blocked, and the roller shaft of the active film-applying roller 12 is confined within the first groove.

[0059] Similarly, to facilitate the replacement of the driven upper film roller 22, such as Figure 9 As shown, the upper end of the second support frame 211 is provided with a second support block 23 for supporting the roller shaft of the driven upper film roller 22. The upper end of the second support block 23 is provided with a second groove for accommodating the roller shaft of the driven upper film roller 22. A second cylinder 231 is provided on the second support block 23 at the opening of the second groove, and the second cylinder 231 is perpendicular to the driven upper film roller 22. When the piston rod of the second cylinder 231 retracts, the second groove is in the open state; when the piston rod of the second cylinder 231 extends, the opening end of the second groove is blocked.

[0060] Similarly, to facilitate the replacement of the active film-feeding roller 32, such as Figure 10 As shown, the first base frame 31 has third support blocks 34 at both ends for supporting the roller shaft of the active lower film roller 32. The upper end of the third support block 34 has a third groove for accommodating the roller shaft of the active lower film roller 32. A third cylinder 341 is provided on the third support block 34 at the opening of the third groove, and the third cylinder 341 is perpendicular to the active lower film roller 32. When the piston rod of the third cylinder 341 retracts, the third groove is in the open state; when the piston rod of the third cylinder 341 extends, the opening end of the third groove is blocked.

[0061] Similarly, to facilitate the replacement of the driven lower film roller 42, such as Figure 11As shown, the second base frame 41 has fourth support blocks 43 at both ends for supporting the roller shaft of the driven lower film roller 42. The upper end of each fourth support block 43 has a fourth groove for accommodating the roller shaft of the driven lower film roller 42. A fourth cylinder 431 is mounted on the fourth support block 43 at the opening of the fourth groove, and the fourth cylinder 431 is perpendicular to the driven lower film roller 42. When the piston rod of the fourth cylinder 431 retracts, the fourth groove is open; when the piston rod of the fourth cylinder 431 extends, the opening of the fourth groove is sealed.

[0062] Furthermore, such as Figure 6 , Figure 9 and Figure 12 As shown, between the two first support frames 111, below the active upper film roller 12, an active side first upper guide roller 15 and an active side second upper guide roller 16 are arranged sequentially from top to bottom. Between the two second support frames 211, below the driven upper film roller 22, a driven side first upper guide roller 24 and a driven side second upper guide roller 25 are arranged sequentially from top to bottom. One end of the protective film 6 located on the upper side of the sheet 7 is wound around the driven upper film roller 22, and the other end of the protective film 6, from the outside (with the side facing away from the upper mold assembly 51 as the outside), sequentially passes around the driven side first upper guide roller 24, the driven side second upper guide roller 25, the active side second upper guide roller 16, and the active side first upper guide roller 15 before being wound around the active upper film roller 12.

[0063] Furthermore, such as Figure 6 As shown, the two ends of the active side second upper guide roller 16 are respectively connected to the first support frame 111 via first pull rods 1121. A first mounting block 1122 is provided at the lower end of the first pull rod 1121, and a first mounting hole is provided on the first mounting block 1122. The two ends of the roller shaft of the active side second upper guide roller 16 are respectively inserted into the first mounting holes of the two first mounting blocks 1122, and are fixedly connected to the first mounting blocks 1122 by first tightening bolts 1123. A first clearance hole for accommodating the first pull rod 1121 is provided at the lower end of the first support frame 111. The upper end of the first pull rod 1121 passes through the first clearance hole in a vertical direction, and first locking nuts 1124 are respectively provided on the first pull rod 1121 on the upper and lower sides of the first clearance hole. Figure 9As shown, both ends of the driven-side second upper guide roller 25 are connected to the second support frame 211 via second tie rods 2121. A second mounting block 2122 is provided at the lower end of the second tie rod 2121, and a second mounting hole is provided on the second mounting block 2122. Both ends of the roller shaft of the driven-side second upper guide roller 25 are inserted into the second mounting holes of the two second mounting blocks 2122, and are fixedly connected to the second mounting blocks 2122 via second tightening bolts 2123. A second clearance hole for accommodating the second tie rod 2121 is provided at the lower end of the second support frame 211. The upper end of the second tie rod 2121 passes through the second clearance hole vertically, and second locking nuts 2124 are respectively provided on the upper and lower sides of the second tie rod 2121 at the second clearance hole.

[0064] This allows for easy adjustment of the height of the active side second upper guide roller 16 and the driven side second upper guide roller 25, thereby maintaining a suitable distance between the protective film 6 and the lower side of the upper mold assembly 51.

[0065] Furthermore, such as Figure 10 , Figure 11 and Figure 12 As shown, the inner side of the active lower film roller 32 (with the side closest to the press 5 as the inner side) is provided with an active side first lower guide roller 35 and an active side second lower guide roller 36 sequentially from bottom to top. The inner side of the driven lower film roller 42 (with the side closest to the press 5 as the inner side) is provided with a driven side first lower guide roller 44 and a driven side second lower guide roller 45 sequentially from bottom to top. One end of the protective film 6 located on the lower side of the sheet 7 is wound around the driven lower film roller 42, and the other end of the protective film 6 sequentially passes around the driven side first lower guide roller 44 from the bottom, passes around the driven side second lower guide roller 45 and the active side second lower guide roller 36 from the top, passes around the active side first lower guide roller 35 from the bottom, and then is wound around the active lower film roller 32.

[0066] As one specific implementation method, such as Figure 4 , Figure 10 and Figure 11 As shown, the first base frame 31 has an upwardly extending first upright 311 on the side near the press 5, and the active-side first lower guide roller 35 is disposed on the first upright 311. The second base frame 41 has an upwardly extending second upright 411 on the side near the press 5, and the driven-side first lower guide roller 44 is disposed on the second upright 411. Figure 2 and Figure 4 As shown, the two ends of the active side second lower guide roller 36 are respectively installed on the unloading side of the press 5 lower film assembly 52 through the first mounting assembly, and the two ends of the driven side second lower guide roller 45 are respectively installed on the loading side of the press 5 lower film assembly 52 through the second mounting assembly.

[0067] Further, the first mounting assembly includes a first support rod 371, with a third mounting block 372 at its upper end. The third mounting block 372 has a third mounting hole. The two ends of the roller shaft of the active-side second lower guide roller 36 are respectively inserted into the third mounting holes of the two third mounting blocks 372 and fixedly connected to the third mounting blocks 372 by a third tightening bolt 373. A first locking block 374 is provided at the lower end of the first support rod 371. The first locking block 374 has a third clearance hole allowing the first support rod 371 to pass through. Third locking nuts (not shown in the figure) are respectively provided on the upper and lower sides of the third clearance hole on the first support rod 371. The first locking block 374 is detachably fixedly connected to the lower film assembly 52 of the press 5. The second mounting assembly includes a second support rod 461. A fourth mounting block 462 is provided at the upper end of the second support rod 461. The fourth mounting block 462 has a fourth mounting hole. The two ends of the driven side second lower guide roller 45 are respectively inserted into the four mounting holes of the four mounting blocks 462 and fixedly connected to the fourth mounting blocks 462 by a fourth tightening bolt 463. A second locking block 464 is provided at the lower end of the second support rod 461. The second locking block 464 has a fourth clearance hole allowing the second locking block 464 to pass through. Fourth locking nuts (not shown in the figure) are respectively provided on the upper and lower sides of the fourth clearance hole on the second support rod 461. The second locking block 464 is detachably fixedly connected to the lower film assembly 52 of the press 5.

[0068] This allows for easy adjustment of the height of the active side second lower guide roller 36 and the driven side second lower guide roller 45, thereby maintaining a suitable distance between the protective film 6 and the upper side of the lower mold assembly.

[0069] Furthermore, in order to ensure that the protective film 6 has suitable tension, such as Figure 9 As shown, the second mounting frame is equipped with an upper film-coated magnetic powder brake 261, and the upper film-coated magnetic powder brake 261 is connected to the roller shaft of the driven upper film roller 22 via a third transmission mechanism. Exemplarily, the third transmission mechanism is a gear transmission. The third transmission mechanism includes a third driven gear 262 disposed on the roller shaft of the driven upper film roller 22, and a third driving gear 263 meshing with the third driven gear 262 is disposed below the third driven gear 262. Both ends of the gear shaft of the third driving gear 263 are rotatably connected to a support frame disposed on the second mounting frame via bearing assemblies. The upper film-coated magnetic powder brake 261 is connected to the gear shaft of the third driving gear 263 via a coupling.

[0070] Similarly, in order to ensure that the protective film 6 has the appropriate tension, such as Figure 11 As shown, a lower coating magnetic powder brake 471 is provided on the second base frame 41, and the lower coating magnetic powder brake 471 is connected to the roller shaft of the driven lower film roller 42 through a fourth transmission mechanism. Exemplarily, the fourth transmission mechanism is a gear transmission. The fourth transmission mechanism includes a fourth driven gear 472 disposed on the roller shaft of the driven lower film roller 42, and a fourth driving gear 473 meshing with the fourth driven gear 472 is disposed below the fourth driven gear 472. The two ends of the gear shaft of the fourth driving gear 473 are rotatably connected to a support frame disposed on the second base frame 41 through bearing assemblies. The lower coating magnetic powder brake 471 is connected to the gear shaft of the fourth driving gear 473 through a coupling.

[0071] Furthermore, such as Figure 6 and Figure 9 As shown, a first crossbeam 113 is disposed between the two first support frames 111 below the active upper film roller 12, and both ends of the first crossbeam 113 are detachably fixed to the first support frame 111. A second crossbeam 213 is disposed between the two second support frames 211 below the driven upper film roller 22, and both ends of the second crossbeam 213 are detachably fixed to the second support frame 211. A first distance sensor 17 for detecting the radius of the active upper film roller 12 is disposed on the first crossbeam 113, and a second distance sensor 27 (not shown in the figure) for detecting the radius of the driven upper film roller 22 is disposed on the second crossbeam 213. By measuring the radius of the active upper film roller 12 and combining it with the required stretching stroke of the protective film 6, the number of rotations required for the active upper film roller 12 can be calculated, thereby achieving precise traction and avoiding material waste. In addition, by measuring the radius of the driven upper film roller 22, it can be determined whether the film roller needs to be replaced.

[0072] Similarly, a third distance sensor 38 for detecting the radius of the active lower film roller 32 is provided on the first base frame 31, and a fourth distance sensor 48 (not shown in the figure) for detecting the radius of the driven lower film roller 42 is provided on the second base frame 41. By measuring the radius of the active lower film roller 32 and combining it with the required stretching stroke of the protective film 6, the number of rotations required for the active lower film roller 32 can be calculated, thereby achieving precise traction and avoiding material waste. In addition, by measuring the radius of the driven lower film roller 42, it can be determined whether the film roller needs to be replaced. For example, both the third distance sensor 38 and the fourth distance sensor 48 are located on the side away from the press 5.

[0073] Furthermore, such as Figure 10 and Figure 11 As shown, both the first base frame 31 and the second base frame 41 are equipped with wheels at their bottom. For example, the wheels are wheels with brakes.

[0074] Furthermore, to prevent the first base frame 31 and the second base frame 41 from moving during operation, such as... Figure 10 and Figure 11 As shown, the first base frame 31 has first pins 39 at both ends, with the male end of the first pin 39 attached to the first base frame 31 and the female end of the first pin 39 on the ground. The second base frame 41 has second pins 49 at both ends, with the male end of the second pin 49 attached to the second base frame 41 and the female end of the second pin 49 on the ground. For example, the first pins 39 are located on the side of the first base frame 31 facing away from the press 5, and the second pins 49 are located on the side of the second base frame 41 facing away from the press 5.

[0075] Example 2

[0076] The power output shaft of the upper film-coating drive motor 131 is connected to the roller shaft of the active upper film roller 12 via a coupling. The upper film-coating magnetic powder brake 261 is connected to the roller shaft of the driven upper film roller 22 via a coupling. The power output shaft of the lower film-coating drive motor 331 is connected to the roller shaft of the active lower film roller 32 via a coupling. The lower film-coating magnetic powder brake 471 is connected to the roller shaft of the driven lower film roller 42 via a coupling.

[0077] The rest of the structure is the same as in Example 1.

[0078] Other embodiments obtained by those skilled in the art based on the embodiments provided in this application by combining, splitting, or reorganizing the embodiments of this application do not exceed the protection scope of this application.

[0079] The above detailed embodiments have provided a detailed explanation of the purpose, technical solutions, and beneficial effects of the embodiments of this application. The above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. That is, any modifications, equivalent substitutions, improvements, etc., made on the basis of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. An automatic film coating device, characterized in that: Includes upper-film package and lower-film package; The upper film assembly includes an upper film active unit (1) and an upper film driven unit (2) located on both sides of the press (5); The active film coating unit (1) includes a first mounting frame, on which an active film coating roller (12) and an active film coating drive component for driving the active film coating roller (12) to rotate are provided; The upper film driven unit (2) includes a second mounting frame and a driven upper film roller (22) disposed on the second mounting frame; The lower film assembly includes a lower film active unit (3) and a lower film driven unit (4) located on both sides of the press (5); The lower film covering active unit (3) includes a first base frame (31), on which an active lower film roller (32) and a lower film covering drive component for driving the active lower film roller (32) to rotate are provided; The lower film driven unit (4) includes a second base frame (41) and a driven lower film roller (42) disposed on the second base frame (41).

2. The automatic film coating device according to claim 1, characterized in that: The first mounting frame is provided with a first support block (14), the upper end of the first support block (14) is provided with a first groove for accommodating the roller shaft of the active film-up roller (12), and the first support block (14) is provided with a first cylinder (141) for sealing the first groove. The second mounting bracket is provided with a second support block (23), the upper end of the second support block (23) is provided with a second groove for accommodating the roller shaft of the driven upper film roller (22), and the second support block (23) is provided with a second cylinder (231) for sealing the second groove; The first base frame (31) is provided with a third support block (34) at both ends. The upper end of the third support block (34) is provided with a third groove for accommodating the roller shaft of the active lower film roller (32). The third support block (34) is provided with a third cylinder (341) for sealing the third groove. The second base frame (41) is provided with a fourth support block (43) at both ends. The upper end of the fourth support block (43) is provided with a fourth groove for accommodating the roller shaft of the driven lower film roller (42). The fourth support block (43) is provided with a fourth cylinder (431) for sealing the fourth groove.

3. The automatic film coating device according to claim 1, characterized in that: The first mounting frame is provided with an active side first upper guide roller (15) and an active side second upper guide roller (16) arranged from top to bottom below the active upper film roller (12), and the second mounting frame is provided with a driven side first upper guide roller (24) and a driven side second upper guide roller (25) arranged from top to bottom below the driven upper film roller (22).

4. An automatic film coating device according to claim 3, characterized in that: The two ends of the active side second upper guide roller (16) are respectively connected to the first mounting frame via the first pull rod (1121), and the two ends of the driven side second upper guide roller (25) are respectively connected to the second mounting frame via the second pull rod (2121). The height of the active side second upper guide roller (16) and the driven side second upper guide roller (25) can be adjusted by adjusting the first pull rod (1121) and the second pull rod (2121).

5. An automatic film coating device according to claim 1, characterized in that: The inner side of the active film roller (32) is provided with an active side first lower guide roller (35) and an active side second lower guide roller (36) from bottom to top. The inner side of the driven film roller (42) is provided with a driven side first lower guide roller (44) and a driven side second lower guide roller (45) from bottom to top.

6. An automatic film coating device according to claim 5, characterized in that: A first upright (311) is provided on the side of the first base frame (31) near the press (5), and the first lower guide roller (35) on the active side is provided on the first upright (311). A second upright (411) is provided on the side of the second base frame (41) near the press (5), and the first lower guide roller (44) on the driven side is provided on the second upright (411). The second lower guide roller (36) on the active side and the second lower guide roller (45) on the driven side are installed on the lower film assembly (52) of the press (5).

7. An automatic film coating device according to claim 1, characterized in that: The second mounting frame is provided with an upper coating magnetic powder brake (261) for providing braking force to the driven upper film roller (22), and the second base frame (41) is provided with a lower coating magnetic powder brake (471) for providing braking force to the driven lower film roller (42).

8. An automatic film coating device according to claim 1, characterized in that: The first mounting frame is provided with a first distance sensor (17) for detecting the radius of the active upper film roller (12), the second mounting frame is provided with a second distance sensor (27) for detecting the radius of the driven upper film roller (22), the first base frame (31) is provided with a third distance sensor (38) for detecting the radius of the active lower film roller (32), and the second base frame (41) is provided with a fourth distance sensor (48) for detecting the radius of the driven lower film roller (42).

9. An automatic film coating device according to claim 1, characterized in that: Both the first base frame (31) and the second base frame (41) are equipped with wheels.

10. An automatic film coating device according to claim 9, characterized in that: The first base frame (31) is provided with a first pin (39), and the second base frame (41) is provided with a second pin (49), and the female ends of the first pin (39) and the second pin (49) are both located on the ground.

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