Automatic carrying and transferring system for protective film coiled materials

Abstract

The invention provides an automatic carrying and transferring system for protective film coiled materials, which comprises a rack and an AGV (Automatic Guided Vehicle), and is characterized in that relatively inclined goods shelves are fixedly mounted on two sides of the rack, and a plurality of pairs of placing racks for placing the coiled materials are fixedly mounted on the goods shelves in the vertical direction; a rotating column is installed on the front side, located between the two goods shelves, of the rack, a plurality of push plates capable of stretching and retracting in the radial direction are installed on the circumferential side wall of the rotating column, a pair of U-shaped supporting plates with the adjustable distance is installed on the side walls of the push plates, and the pair of U-shaped supporting plates rotate to the front side to be used for grabbing coiled material rollers lifted on an AGV trailer. A pair of material channels inclining downwards is fixedly installed above the machine frame, a plurality of protection covers are conveyed in the material channels in a rolling mode, and a plurality of hollow rubber strips are installed on the circumferential inner walls of the protection covers. According to the system, hoisting and storage of coiled materials can be rapidly completed, materials can be rapidly taken from the AGV, the two ends of a coiled material roller can be automatically sleeved with protective covers, and abrasion is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of protective film storage, and particularly relates to an automatic handling and transfer system for a protective film coil. Background Art

[0002] A protective film is a thin film material used to protect the surface of an object, and is usually used in fields such as electronic products, automobiles, furniture, and buildings. The main function of the protective film is to prevent damage to the object surface caused by scratching, abrasion, pollution, etc.

[0003] After the protective film is processed and wound on a coil roller, after winding is completed, an AGV trolley is used to lift the coil roller, and it is transported to a storage room by the AGV trolley. Then, a hoisting device is used to hoist the coil onto a shelf. However, currently, during the hoisting process, the device needs to move longitudinally and horizontally to position it at the placement position on the shelf. The hoisting process is slow, and the ends of the coil roller lack protection, and it is easy to have hard contact with the shelf and the hoisting device, resulting in wear. Summary of the Invention

[0004] In view of the above problems, the present invention provides an automatic handling and transfer system for a protective film coil, which can quickly complete the hoisting and storage of the coil, quickly pick up the material from the AGV trolley, and can also automatically fit protective covers on both ends of the coil roller to avoid wear.

[0005] To solve the above problems, the technical solution adopted by the present invention is as follows: An automatic handling and transfer system for a protective film coil, comprising a frame and an AGV trolley. On both sides of the frame, relatively inclined shelves are fixedly installed. In the vertical direction, multiple pairs of placement frames for placing coils are fixedly installed on the shelves. A rotating column is installed on the front side of the frame between the two shelves. A plurality of radially expandable push plates are installed on the circumferential side wall of the rotating column. A pair of U-shaped support plates with adjustable spacing are installed on the side wall of the push plate. When the pair of U-shaped support plates are rotated to the front side, they are used to grab the coil roller lifted on the AGV trolley. Above the frame, a pair of inclined downward material channels are fixedly installed. A plurality of protective covers are rollingly conveyed in the material channels. A plurality of hollow rubber strips are installed on the circumferential inner wall of the protective covers. On both sides of the bottom of the material channels, material outlets for pushing out the protective covers are provided. On both sides of the top of the frame, push columns for pushing the protective covers to the corresponding ends of the coil roller are installed. A vertical lifting mechanism is installed between the two shelves of the frame. The lifting mechanism includes a liftable lifting arm. At the front end of the lifting arm, a swing arm that can swing to both sides is installed. At the bottom of the front end of the swing arm, a rotatable lifting arm is installed. At both ends of the lifting arm, grasping and releasing components for grasping and releasing the ends of the coil roller are installed.

[0006] Preferably, a first motor is installed on the frame, and the output end of the first motor is in transmission connection with the corresponding end of the rotating column through a pair of first gears.

[0007] Preferably, a strip-shaped cavity is provided inside the rotating column, a double-headed screw is rotatably connected inside the strip-shaped cavity, nuts are threadedly connected to both sides of the double-headed screw, telescopic arms are fixedly installed on the circumferential side walls of the nuts, strip-shaped openings for the telescopic arms to pass through are provided on the circumferential side walls of the rotating column, sliding openings for the corresponding telescopic arms to pass through are provided at both ends of the push plate, the telescopic sections of the telescopic arms are slidably connected to the corresponding sliding openings, the telescopic ends of the telescopic arms are fixedly connected to the corresponding U-shaped support plates, a plurality of hydraulic cylinders are fixedly installed on the circumferential side wall of the rotating column, the telescopic ends of the hydraulic cylinders are fixedly connected to the corresponding push plates, and a turning handle is installed at the end of the double-headed screw.

[0008] Preferably, first cylinders are fixedly installed on both sides of the frame, and the telescopic ends of the first cylinders are fixedly connected to the corresponding push columns.

[0009] Preferably, an annular pipe is provided inside the end of the protective cover, air holes communicate between the side wall of the annular pipe and the corresponding rubber strip, a docking pipe communicated with the annular pipe is also fixedly connected to the end of the protective cover, an air pipe of an external air pump is installed at the center of the push column, and the air pipe extends to the end of the push column and cooperates with the docking pipe.

[0010] Preferably, the lifting mechanism includes a mounting plate vertically fixedly installed on the frame, an installation groove is provided on the front side of the mounting plate, a vertical threaded rod is rotatably connected inside the installation groove, a slider is threadedly connected to the threaded rod, the front side of the slider is fixedly connected to the lifting arm, and a second motor capable of driving the threaded rod to rotate is installed on the top of the mounting plate.

[0011] Preferably, a transmission groove is provided on the front side of the lifting arm, a rotating shaft is rotatably connected inside the transmission groove, a second gear is fixedly connected to the rotating shaft, a toothed plate is slidably connected to the inner wall of the transmission groove, the toothed plate meshes with the second gear, a second cylinder is fixedly installed on the side wall of the lifting arm, the telescopic end of the second cylinder is fixedly connected to the end of the toothed plate through a connecting plate, and the lower end of the rotating shaft is fixedly connected to the end of the swing arm.

[0012] Preferably, a rotary cylinder is installed at the front end of the swing arm, and the rotating end of the rotary cylinder is fixedly connected to the middle of the lifting arm.

[0013] Preferably, the grasping and releasing assembly includes a pair of limiting plates fixedly installed at both ends of the lifting arm, a third cylinder is fixedly installed at the bottom of one of the limiting plates, and an insertion hole for the telescopic end of the third cylinder to insert is provided at the bottom of the other limiting plate.

[0014] Preferably, a rubber pad is embedded at the inner bottom of the U-shaped support plate.

[0015] The beneficial effects of the present invention are: 1. By installing a rotating column, multiple push plates and multiple pairs of U-shaped support plates, the AGV trolley lifts the coil roll to the front side of the rack. Start the first motor, drive the rotating column to rotate through a pair of first gears, turn a pair of U-shaped support plates to the front side, corresponding to the coil roll. Then start the corresponding hydraulic cylinder to push the push plate forward. Since the telescopic section of the telescopic arm is slidably connected to the sliding opening, the telescopic section extends and retracts with the push plate, thereby driving a pair of U-shaped support plates to move forward and clamp the inner side of the end of the coil roll. The rotating column continues to rotate, and the coil can be turned to the top, enabling continuous material taking while hoisting, with high efficiency and quick material taking from the AGV trolley.

[0016] 2. By installing a double-headed screw rod, the distance between a pair of U-shaped support plates can be adjusted according to the width of the coil. Just rotate the handle to drive the double-headed screw rod to rotate, and drive multiple telescopic arms to move away from or towards each other through a pair of nuts for distance adjustment.

[0017] 3. By installing a pair of push columns, a pair of material channels and a protective cover, the protective cover rolls down to the bottom through the inclined downward material channel, corresponding to the end of the coil roll turned to the upper part. At this time, start the first cylinder to drive the push column to move and enter the material inlet, and push the protective cover out from the other material inlet. The protective cover is sleeved on the end of the coil roll. Before sleeving, the end of the air pipe is docked with the docking pipe, the air pump inhales air, sucks the gas in the annular pipe through the air pipe and the docking pipe, and then sucks the gas in the multiple hollow rubber strips through multiple air holes, making the rubber strips in a contracted state, so that it is easy for the end of the coil roll to be inserted into the protective cover. After the sleeving is completed, the push column resets, and the air pipe is separated from the docking pipe. The rubber strips in a negative pressure state absorb external gas and then stick tightly to the end of the coil roll, avoiding abrasion to the end during hoisting and placing.

[0018] 4. By installing a lifting mechanism, a pair of shelves, lifting arms, swing arms, lifting arms and a pair of grasping and releasing components, start the second motor to drive the threaded rod to rotate, and then drive the lifting arm to lift and lower through the slider, driving the lifting arm to descend to the grasping position. At this time, the lifting arm is in a horizontal state. At this time, the protective covers at both ends of the coil roll are inserted between a pair of limit plates. Then start the third cylinder and insert its telescopic end into the jack, and the limiting process of the end of the coil roll can be completed. The lifting mechanism raises the coil to the required placement height. During the raising process, rotate the lifting arm to the front-back state through the rotary cylinder. Then start the second cylinder to drive the toothed plate to move, and drive the rotating shaft to rotate through the second gear, which can drive the swing arm to swing, swing the coil to the corresponding side shelf, make the lifting arm, the coil and the shelf in a parallel state, and the end of the coil roll is close to the position of a pair of placement racks. The third cylinder resets, and the coil roll can be released. The protective cover at the end is placed on the placement rack to complete the placement process of the coil. By swinging left and right, the storage process of the coil can be quickly completed. Brief Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the present invention; Figure 2 Schematic cross-sectional view of the rotating column proposed by the present invention; Figure 3 Schematic side view of the rotating column proposed by the present invention; Figure 4 is Figure 1 Schematic enlarged view of the structure at A in Figure 5 Schematic diagram of the material channel structure proposed by the present invention; Figure 6 Schematic top view of the placing state of the swing arm proposed by the present invention; Figure 7 Schematic cross-sectional view of the lifting arm proposed by the present invention; Figure 8 Schematic diagram of the grasping and placing component structure proposed by the present invention.

[0020] In the figure: 1 frame, 2 rotating column, 3 first cylinder, 4 mounting plate, 5 second motor, 6 threaded rod, 7 lifting arm, 8 rotating cylinder, 9 swing arm, 10 hanging arm, 11 limiting plate, 12 shelf, 13 placing rack, 14 first gear, 15 first motor, 16 push plate, 17 sliding port, 18 hydraulic cylinder, 19 telescopic arm, 20 double-headed screw, 21 nut, 22 turning handle, 23 U-shaped support plate, 24 slider, 25 second cylinder, 26 toothed plate, 27 transmission groove, 28 rotating shaft, 29 second gear, 30 third cylinder, 31 material channel, 32 protective cover, 33 rubber strip, 34 annular pipe, 35 docking pipe, 36 material port, 37 push column, 38 air pipe. Detailed implementation manners

[0021] To make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementations disclosed below.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation manners.

[0023] Refer to Figure 1-8An automated handling and transfer system for protective film coils includes a frame 1 and an AGV trailer. Relatively inclined shelves 12 are fixedly installed on both sides of the frame 1. The shelves 12 are vertically fixed with multiple pairs of placement racks 13 for placing coils. The coils are placed by lifting and swinging on both sides, with a short stroke and a fast placement speed.

[0024] A rotating column 2 is installed on the front side of the frame 1 located between the two shelves 12, and a first motor 15 is installed on the frame 1. The output end of the first motor 15 is connected to the corresponding end of the rotating column 2 through a pair of first gears 14. A plurality of radially retractable push plates 16 are installed on the circumferential side walls of the rotating column 2, and a pair of U-shaped support plates 23 with adjustable spacing are installed on the side walls of the push plates 16. The pair of U-shaped support plates 23 are rotated to the front side for grabbing the coil roller lifted by the AGV trailer, and a rubber pad is embedded in the inner bottom of the U-shaped support plate 23. Start the first motor 1, and drive the rotating column 2 to rotate through the pair of first gears 14, and rotate the pair of U-shaped support plates 23 to the front side, corresponding to the coil roller, and then start the corresponding hydraulic cylinder 18 to push the push plate 16 forward. Since the telescopic section of the telescopic arm 19 is slidably connected to the sliding mouth 17, the telescopic section retracts and retracts with the push plate 16, thereby driving the pair of U-shaped support plates 23 to move forward and get stuck on the inner side of the end of the coil roller. The rotating column 2 continues to rotate, and the coil can be rotated to the top.

[0025] Furthermore, a strip-shaped cavity is provided in the rotating column 2, in which a double-headed screw 20 is rotatably connected, and nuts 21 are threadedly connected on both sides of the double-headed screw 20, and telescopic arms 19 are fixedly installed on the circumferential side walls of the nut 21, and the circumferential side walls of the rotating column 2 are provided with strip-shaped openings for the telescopic arms 19 to pass through, and both ends of the push plate 16 are provided with sliding openings 17 for the corresponding telescopic arms 19 to pass through, and the telescopic sections of the telescopic arms 19 are slidably connected to the corresponding sliding openings 17, and the telescopic ends of the telescopic arms 19 are fixedly connected to the corresponding U-shaped support plates 23, and multiple hydraulic cylinders 18 are fixedly installed on the circumferential side walls of the rotating column 2, and the telescopic ends of the hydraulic cylinders 18 are fixedly connected to the corresponding push plates 16, and a turning handle 22 is installed on the end of the double-headed screw 20, and the spacing between a pair of U-shaped support plates 23 can be adjusted according to the width of the coil, and the turning handle 22 only needs to be turned to drive the double-headed screw 20 to rotate, and the multiple telescopic arms 19 are driven to move away from or towards each other through a pair of nuts 21 to adjust the spacing.

[0026] Above the frame 1, a pair of downwardly inclined material channels 31 are fixedly installed. Multiple protective covers 32 are conveyed by rolling in the material channels 31. A plurality of hollow rubber strips 33 are installed on the circumferential inner wall of the protective cover 32. On both sides of the bottom of the material channel 31, there are material outlets 36 for pushing out the protective cover 32. On both sides of the top of the frame 1, push columns 37 for pushing the protective cover 32 to the corresponding end of the coil roll are installed. The protective cover 32 rolls down through the downwardly inclined material channel 31 to the bottom and correspondingly turns to the end of the coil roll above. At this time, the first cylinder 3 is started to drive the push column 37 to move, enter the material outlet 36, and push the protective cover 32 out from the other material outlet 36. The protective cover 32 is sleeved on the end of the coil roll.

[0027] Further, an annular pipe 34 is provided inside the end of the protective cover 32. The side wall of the annular pipe 34 is communicated with the corresponding rubber strip 33 through air holes. The end of the protective cover 32 is also fixedly connected with a docking pipe 35 communicated with the annular pipe 34. An air pipe 38 connected to an external air pump is installed at the center of the push column 37. The air pipe 38 extends to the end of the push column 37 and cooperates with the docking pipe 35. Before sleeving, the end of the air pipe 38 is docked with the docking pipe 35. The air pump sucks air, sucks the gas in the annular pipe 34 through the air pipe 38 and the docking pipe 35, and then sucks the gas in the plurality of hollow rubber strips 33 through the plurality of air holes, so that the rubber strips are in a contracted state, and thus it is easy for the end of the coil roll to be inserted into the protective cover 32. After the sleeving is completed, the push column 37 resets, and the air pipe 38 is separated from the docking pipe 35. The rubber strip 33 in a negative pressure state absorbs external gas, and thus clings to the end of the coil roll, avoiding abrasion to the end during hoisting and placement.

[0028] A vertical lifting mechanism is installed between two shelves 12 of the frame 1. The lifting mechanism includes a liftable lifting arm 7. The lifting mechanism includes a mounting plate 4 fixedly installed vertically on the frame 1. An installation groove is provided on the front side of the mounting plate 4. A vertical threaded rod 6 is rotatably connected in the installation groove. A slider 24 is threadedly connected to the threaded rod 6. The front side of the slider 24 is fixedly connected to the lifting arm 7. A second motor 5 capable of driving the threaded rod 6 to rotate is installed on the top of the mounting plate 4. The second motor 5 is started to drive the threaded rod 6 to rotate, and then the lifting arm 7 is driven to lift through the slider 24.

[0029] A swing arm 9 that can swing to both sides is installed at the front end of the lifting arm 7. A transmission groove 27 is provided on the front side of the lifting arm 7. A rotating shaft 28 is rotatably connected in the transmission groove 27. A second gear 29 is fixedly connected to the rotating shaft 28. A toothed plate 26 is slidably connected to the inner wall of the transmission groove 27. The toothed plate 26 meshes with the second gear 29. A second cylinder 25 is fixedly installed on the side wall of the lifting arm 7. The telescopic end of the second cylinder 25 and the end of the toothed plate 26 are fixedly connected through a connecting plate. The lower end of the rotating shaft 28 is fixedly connected to the end of the swing arm 9. A rotatable lifting arm 10 is installed at the bottom of the front end of the swing arm 9. A rotating cylinder 8 is installed at the front end of the swing arm 9. The rotating end of the rotating cylinder 8 is fixedly connected to the middle of the lifting arm 10. Gripping and releasing components for gripping and releasing the ends of the coil rollers are installed at both ends of the lifting arm 10.

[0030] Specifically, the gripping and releasing component includes a pair of limit plates 11 fixedly installed at both ends of the lifting arm 10. A third cylinder 30 is fixedly installed at the bottom of one of the limit plates 11. A jack for the telescopic end of the third cylinder 30 to insert is provided at the bottom of the other limit plate 11. The lifting arm 10 descends to the gripping position. At this time, the lifting arm 10 is in a horizontal state. At this time, the protective covers 32 at both ends of the coil roller are inserted between the pair of limit plates 11. Then, the third cylinder 30 is started, and its telescopic end is inserted into the jack, and the limiting process of the end of the coil roller can be completed. The end of the coil roller approaches the position of a pair of placement racks 13. The third cylinder 30 resets, and the coil roller can be released. The protective cover 32 at the end is placed on the placement rack 13, and the placement process of the coil is completed.

[0031] The AGV trolley lifts the coil roller to the front right side of the machine frame. The first motor 15 is started, and the rotating column 2 is driven to rotate through a pair of first gears 14, and the pair of U-shaped support plates 23 are rotated to the front side, corresponding to the coil roller. Then, the corresponding hydraulic cylinder 18 is started to push the push plate 16 forward. Since the telescopic section of the telescopic arm 19 is slidably connected to the sliding port 17, the telescopic section extends and contracts along with the push plate 16, and then drives the pair of U-shaped support plates 23 to move forward and get stuck inside the ends of the coil roller. The rotating column 2 continues to rotate, and the coil can be rotated to the top, and the material can be taken while lifting.

[0032] The protective cover 32 rolls down to the bottom through the obliquely downward material channel 31, corresponding to the end of the coil roller rotated to the upper side. At this time, the first cylinder 3 is started to drive the push column 37 to move and enter the material port 36, and the protective cover 32 is pushed out from the other material port 36. The protective cover 32 is sleeved on the end of the coil roller. Before sleeving, the end of the air pipe 38 is docked with the docking pipe 35. The air pump sucks air, sucks the gas in the annular pipe 34 through the air pipe 38 and the docking pipe 35, and then sucks the gas in the hollow multiple rubber strips 33 through multiple air holes, so that the rubber strips are in a contracted state, and then it is easy for the end of the coil roller to be inserted into the protective cover 32. After the sleeving is completed, the push column 37 resets, and the air pipe 38 is separated from the docking pipe 35. The rubber strip 33 in a negative pressure state absorbs the external gas, and then clings to the end of the coil roller, avoiding abrasion to the end during the lifting and placement processes.

[0033] Start the second motor 5 to drive the threaded rod 6 to rotate, and then drive the lifting arm 7 to lift through the slider 24, driving the jib 10 to descend to the grasping position. At this time, the jib 10 is in the horizontal state. At this time, the protective covers 32 at both ends of the coil roller are inserted between a pair of limit plates 11. Then start the third cylinder 30 and insert its telescopic end into the jack, and the limiting process of the end of the coil roller can be completed. The lifting mechanism lifts the coil to the required height. During the lifting process, rotate the jib 10 to the front-back state through the rotary cylinder 8. Then start the second cylinder 25 to drive the toothed plate 26 to move, drive the rotating shaft 28 to rotate through the second gear 29, and then drive the swing arm 9 to swing, swing the coil to the corresponding side of the shelf 12, so that the jib, the coil and the shelf 12 are in a parallel state, and the end of the coil roller is close to the position of a pair of placement frames 13. The third cylinder 30 resets, and the coil roller can be released. The protective cover 32 at the end is placed on the placement frame 13 to complete the placement process of the coil. Swing left and right to quickly complete the storage process of the coil.

[0034] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automated handling and transfer system for a protective film coil, comprising a frame (1) and an AGV trolley, characterized in that, Relatively inclined shelves (12) are fixedly installed on both sides of the frame (1), and a plurality of pairs of placement racks (13) for placing coils are fixedly installed on the shelves (12) in the vertical direction. A rotating column (2) is installed on the front side of the frame (1) located between the two shelves (12), and a plurality of radially retractable push plates (16) are installed on the circumferential side walls of the rotating column (2). A pair of U-shaped support plates (23) with adjustable spacing are installed on the side walls of the push plates (16). The pair of U-shaped support plates (23) are rotated to the front side for grabbing the coil rollers lifted by the AGV trailer. A pair of downwardly inclined material channels (31) are fixedly installed above the frame (1), and a plurality of protective covers (32) are rolled and transported in the material channels (31). The protective cover (32) is provided with a plurality of hollow rubber strips (33) on the circumferential inner wall thereof, material ports (36) for pushing out the protective cover (32) are provided on both sides of the bottom of the material channel (31), push columns (37) for pushing the protective cover (32) to the corresponding ends of the coiled material roller are provided on both sides of the top of the frame (1), and a vertical lifting mechanism is provided on the frame (1) between two shelves (12), and the lifting mechanism comprises a lifting arm (7) that can be lifted and lowered, a swing arm (9) that can swing to both sides is provided at the front end of the lifting arm (7), a rotatable suspension arm (10) is provided at the bottom of the front end of the swing arm (9), and gripping and releasing components for gripping and releasing the ends of the coiled material roller are provided at both ends of the suspension arm (10).

2. The automated handling and transfer system for a protective film coil according to claim 1, wherein A first motor (15) is mounted on the frame (1), and an output end of the first motor (15) is transmission-connected to a corresponding end of the rotating column (2) via a pair of first gears (14).

3. The automated handling and transfer system for a protective film coil according to claim 1, characterized in that, The rotating column (2) is provided with a strip cavity, in which a double-headed screw (20) is rotatably connected, nuts (21) are threadedly connected on both sides of the double-headed screw (20), and telescopic arms (19) are fixedly installed on the circumferential side walls of the nuts (21). The circumferential side walls of the rotating column (2) are provided with strip openings for the telescopic arms (19) to pass through, and both ends of the push plate (16) are provided with sliding openings (17) for the corresponding telescopic arms (19) to pass through, and the telescopic sections of the telescopic arms (19) are slidably connected to the corresponding sliding openings (17), and the telescopic ends of the telescopic arms (19) are fixedly connected to the corresponding U-shaped support plates (23). A plurality of hydraulic cylinders (18) are fixedly installed on the circumferential side walls of the rotating column (2), and the telescopic ends of the hydraulic cylinders (18) are fixedly connected to the corresponding push plates (16), and a turning handle (22) is installed at the ends of the double-headed screw (20).

4. An automated handling and transfer system for a protective film coil according to claim 1, characterized in that, A first cylinder (3) is fixedly mounted on both sides of the frame (1), and a telescopic end of the first cylinder (3) is fixedly connected to a corresponding push column (37).

5. The automated handling and transfer system for a protective film coil according to claim 1, wherein, An annular pipe (34) is arranged inside the end of the protective cover (32). Air holes are communicated between the side wall of the annular pipe (34) and the corresponding rubber strip (33). A butt joint pipe (35) communicated with the annular pipe (34) is fixedly connected to the end of the protective cover (32). An air pipe (38) of an external air pump is installed at the center of the push column (37). The air pipe (38) extends to the end of the push column (37) and is matched with the butt joint pipe (35).

6. The automated handling and transfer system for a protective film coil according to claim 1, characterized in that, The lifting mechanism includes a mounting plate (4) vertically and fixedly installed on the frame (1). An installation groove is arranged on the front side of the mounting plate (4). A vertical threaded rod (6) is rotatably connected in the installation groove. A slider (24) is threadedly connected to the threaded rod (6). The front side of the slider (24) is fixedly connected to the lifting arm (7). A second motor (5) capable of driving the threaded rod (6) to rotate is installed on the top of the mounting plate (4).

7. An automated handling and transfer system for a protective film coil according to claim 1, characterized in that, A transmission groove (27) is arranged on the front side of the lifting arm (7). A rotating shaft (28) is rotatably connected in the transmission groove (27). A second gear (29) is fixedly connected to the rotating shaft (28). A toothed plate (26) is slidably connected to the inner wall of the transmission groove (27). The toothed plate (26) is meshed with the second gear (29). A second air cylinder (25) is fixedly installed on the side wall of the lifting arm (7). The telescopic end of the second air cylinder (25) and the end of the toothed plate (26) are fixedly connected through a connecting plate. The lower end of the rotating shaft (28) is fixedly connected to the end of the swing arm (9).

8. An automated handling and transfer system for a protective film coil according to claim 1, characterized in that, A rotating air cylinder (8) is installed at the front end of the swing arm (9). The rotating end of the rotating air cylinder (8) is fixedly connected to the middle of the lifting arm (10).

9. The automated handling and transfer system for a protective film coil according to claim 1, characterized in that The grasping and releasing assembly includes a pair of limiting plates (11) fixedly installed at both ends of the lifting arm (10). A third air cylinder (30) is fixedly installed at the bottom of one of the limiting plates (11). A jack for the telescopic end of the third air cylinder (30) to insert is arranged at the bottom of the other limiting plate (11).

10. The automated handling and transfer system for a protective film coil according to claim 1, characterized in that, A rubber pad is embedded in the inner bottom of the U-shaped support plate (23).

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