Film coating mechanism for coating antirust film on roller

Abstract

The invention relates to the field of roller film coating, and discloses a film coating mechanism for coating a rust-proof film on a roller, the film coating mechanism comprises a support and a roller main body, a moving plate is arranged at the lower part in the support, the moving plate is arranged on the support through a moving structure, and the roller main body is arranged on the moving plate through a supporting structure; a vertical plate is installed on the rear side face of the support, a first film covering structure and a second film covering structure are arranged on the vertical plate, a winding structure is arranged on the support, a switching structure is used for switching a first supporting seat and a second supporting seat on a supporting structure, and therefore different positions on a roller are supported during film covering, and the film covering efficiency is improved. And therefore, the roller is better exposed for film coating work, and film coating on the roller is more thorough.

Description

Technical Field

[0001] The present invention relates to the technical field of roll film coating, and in particular to a film coating mechanism for coating an anti-rust film on a roll. Background Art

[0002] A roll is the main working component on a rolling mill that causes continuous plastic deformation of metal; it consists of a pair of rollers rotating in opposite directions, and a slit or hole of a certain shape is formed between the two rollers, and the steel billet passes through it and is rolled into steel; after the roll is produced, a film coating mechanism is required to perform the film coating work on the roll;

[0003] In the prior art film coating mechanism, the transfer structure can be driven to move in sequence through a switching structure, the rolls placed on the transfer structure are switched, and under the action of the abutting driving structure, the roll is pushed to abut against the supporting and rotating structure. After one end of the anti-rust film is abutted against the roll by the driving clamping structure, the roll can be directly driven to rotate on the transfer frame to achieve the film coating work, which is time-saving and labor-saving, and the film coating work efficiency is higher. After the film coating, the transfer structure can be directly pushed to drive the film-coated roll to be transferred, which is more convenient to use;

[0004] However, since the outer diameter sizes at different positions on the roll are different, it is more troublesome to completely coat the roll with a film. Moreover, when the roll is coated with a film, it is supported in the support groove of the support seat, which results in that the position of the roll in contact with the support seat cannot be smoothly coated with a film, causing the problems of troublesome film coating and incomplete film coating. Summary of the Invention

[0005] In order to solve the problems raised in the above background art, the present invention provides a film coating mechanism for coating an anti-rust film on a roll.

[0006] The film coating mechanism for coating an anti-rust film on a roll provided by the present invention adopts the following technical solutions:

[0007] A film coating mechanism for coating an anti-rust film on a roll includes a bracket and a roll body. A moving plate is arranged at the lower inner part of the bracket. The moving plate is arranged on the bracket through a moving structure. The roll body is arranged on the moving plate through a supporting structure. A vertical plate is installed on the rear side surface of the bracket. A first film coating structure and a second film coating structure are respectively arranged on the vertical plate. A winding structure is arranged on the upper part of the bracket;

[0008] The support structure includes U-shaped rods installed near the four corner positions on the upper surface of the moving plate. A first lifting plate is movably sleeved on one section of each group of two U-shaped rods, and a second lifting plate is movably sleeved on the other section of each group of two U-shaped rods. Two first U-shaped plates are connected near the two ends on the upper surfaces of the two first lifting plates, and two second U-shaped plates are connected near the middle on the upper surfaces of the two second lifting plates. A first support seat is installed in the middle on the upper surface of the first U-shaped plate, and a second support seat is installed in the middle on the upper surface of the second U-shaped plate. The roll body is supported on the two first support seats, and a switching structure is arranged on the moving plate.

[0009] Preferably, the switching structure includes mounting plates installed at the middle positions on both sides of the upper surface of the moving plate. A motor is installed on the right side surface of one of the mounting plates. A bidirectional screw is rotatably passed through the two mounting plates, and one end of the output shaft of the motor is connected to the bidirectional screw. The left and right sections of the bidirectional screw have opposite thread directions. Moving seats are sleeved near both ends of the bidirectional screw. Guide grooves for the moving seats to slide are formed on the moving plate, and a threaded groove for the bidirectional screw to pass through is formed on the moving plate. Driving rods are connected to the top ends of the front and rear side surfaces of the moving seats. First driving grooves are formed at both ends of the first lifting plate, and two second driving grooves are formed in the middle of the first lifting plate. One end of the second driving groove communicates with one end of the first driving groove, and the other ends of the two second driving grooves communicate with each other. Third driving grooves are formed on both sides of the second lifting plate, and the two third driving grooves communicate with each other.

[0010] Preferably, the moving structure includes longitudinal grooves formed at the lower positions on the inner walls of the left and right sides of the bracket. Moving strips are installed at both left and right ends of the moving plate, and the moving strips are slidably arranged in the longitudinal grooves. Rollers are installed at the four corner positions on the side surface of the moving plate. Cylinders are installed at the left and right ends of the lower part of the rear side surface of the bracket, and one end of the output shaft of the cylinder is connected to the moving strip. Limiting plates are connected to the two corner positions above the front side surface of the vertical plate, and the limiting plates are closely attached to both ends of the roll body. The front end of the limiting plate is an inclined surface.

[0011] Preferably, the winding structure includes first fixing plates connected to the middle positions on both left and right sides of the upper surface of the bracket. A cross bar is rotatably passed through the two first fixing plates. A first film cylinder is rotatably sleeved in the middle of the cross bar, and second film cylinders are rotatably sleeved at both ends of the cross bar on the first film cylinder. Antirust films are wound on both the first film cylinder and the second film cylinders.

[0012] Preferably, the first film covering structure is connected to the second fixing plates on the upper left and right sides of the front side of the vertical plate. First grooves are formed on the upper and lower side surfaces of the two second fixing plates at the sides close to each other. A first moving frame is slidably arranged in each of the two first grooves on each second fixing plate. Two first driving bars are arranged on the first moving frame through a first guiding structure. One ends of the upper and lower groups of first driving bars are respectively connected with a first film roller. A first micro-edge bar is arranged at a position close to the first moving frame on the side surface of the upper first film roller. A first electric telescopic rod is installed above the middle of the rear side surface of the vertical plate. A first side plate is connected between the two first moving frames. One end of the output shaft of the first electric telescopic rod is connected to the first side plate. A strip feeding structure is arranged on the upper surface of the second fixing plate.

[0013] Preferably, the first guiding structure includes two first sliding grooves formed on the first moving frame. First sliders are slidably arranged in the first sliding grooves. A first inserting rod is fixedly passed through the first sliders. The other ends of the first driving bars are fixedly sleeved on the first inserting rod. Two first transverse grooves are respectively formed on the side surfaces of the two second fixing plates close to each other. One end of the first inserting rod is slidably arranged in the first transverse groove. A first circular groove is formed on the second fixing plate. The first circular groove communicates with the two first transverse grooves.

[0014] Preferably, the second film covering structure includes second grooves formed on the upper and lower side surfaces of the two second fixing plates at the sides far from each other. A second moving frame is slidably arranged in each of the two second grooves in each group. Two second driving bars are arranged on the second moving frame through a second guiding structure. A second electric telescopic rod is installed at the middle of the inner wall at the rear side of the bracket. One end of the output shaft of the second electric telescopic rod is connected to a second side plate. The two ends of the second side plate are respectively connected to the two second moving frames. A second film roller is installed at one end of each second driving bar.

[0015] Preferably, the second guiding structure includes two second sliding grooves formed on the second moving frame. Second sliders are slidably arranged in the second sliding grooves. A second inserting rod is fixedly passed through the second sliders. Two second transverse grooves are respectively formed at the middle of the side surfaces of the two second fixing plates far from each other. One end of the second inserting rod is slidably arranged in the second transverse groove. The other end of the second driving bar is fixedly sleeved on the second inserting rod. A second circular groove is formed on the second fixing plate. The second circular groove communicates with the two second transverse grooves respectively.

[0016] Preferably, the strip structure includes a slot opened in the middle of the upper surface of the second fixed plate. A driving plate is movably inserted into the slot. A transmission groove is opened on the driving plate. An L-shaped rod movably passes through the transmission groove. The bottom end of the L-shaped rod is connected to a mounting block, and the mounting block is fixedly connected to the first moving frame. A connecting strip is connected to the upper front corner of the driving plate. A film frame is mounted on one end of each of the two connecting strips. A first through groove is opened in the middle of the film frame, and second through grooves are opened at both ends of the film frame. An anti-rust film movably passes through the first through groove and the second through grooves.

[0017] In summary, the present invention includes the following beneficial technical effects:

[0018] 1. By setting the support structure and the switching structure, and using the switching structure to switch between the two groups of first support seats and second support seats on the support structure, during film covering, different positions on the roller are supported, thereby better exposing the roller for film covering work, making the film covering of the roller more thorough.

[0019] 2. By setting the first film covering structure, the first guiding structure, the second film covering structure and the second guiding structure, using the first film covering structure and the second film covering structure, before and after switching the roller, the anti-rust film on the first winding roller and the second winding roller can be covered on different outer diameter positions of the roller. And when the first guiding structure and the second guiding structure act, the first film covering roller can be driven to move around the side of the roller body, and the second film covering roller can be driven to move around the side of the roller body, and the anti-rust film is wound around the roller body while realizing the film covering work, making the film covering work simpler, more convenient and with higher work efficiency.

[0020] 3. By setting the film structure, after the first film covering structure covers the roller body with the film, it can automatically drive one end of the cut anti-rust film to move to the side of the roller body close to the vertical plate for reset, and can also play a limiting role on the anti-rust film. During the film covering process, the anti-rust film can be smoothly covered on the roller body, and at the same time, it is convenient for the film covering work of the next roller body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a film covering mechanism for covering an anti-rust film on a roller in an embodiment of the present invention;

[0022] Figure 2 is a schematic structural diagram of the winding structure in an embodiment of the present invention;

[0023] Figure 3 is a schematic structural diagram of the support structure and the switching structure in an embodiment of the present invention;

[0024] Figure 4 is a schematic structural diagram of the second lifting plate in an embodiment of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the vertical plate in the embodiment of the present invention;

[0026] Figure 6 It is in the embodiment of the present invention Figure 5 An enlarged view of the structure at position A;

[0027] Figure 7 It is in the embodiment of the present invention Figure 5 An enlarged view of the structure at position B;

[0028] Figure 8 It is a schematic structural diagram of the film frame in the embodiment of the present invention.

[0029] Explanation of reference numerals: 1, bracket; 2, moving plate; 3, main roll body; 4, U-shaped rod; 5, first lifting plate; 6, second lifting plate; 7, first U-shaped plate; 8, first support seat; 9, second U-shaped plate; 10, second support seat; 11, mounting plate; 12, motor; 13, bidirectional screw; 14, moving seat; 15, driving rod; 16, first driving groove; 17, second driving groove; 18, third driving groove; 19, guiding groove; 20, cylinder; 21, moving strip; 22, longitudinal groove; 23, roller; 24, vertical plate; 25, first fixing plate; 26, cross bar; 27, first film cylinder; 28, second film cylinder; 29, limiting plate; 30, second fixing plate; 31, first electric telescopic rod; 32, first side plate; 33, first moving frame; 34, first groove; 35, first driving strip; 36, first film covering roller; 37, first insertion rod; 38, first slider; 39, first sliding groove; 40, first transverse groove; 41, first circular groove; 42, second electric telescopic rod; 43, second side plate; 44, second moving frame; 45, second groove; 46, second driving strip; 47, second film covering roller; 48, second insertion rod; 49, second slider; 50, second sliding groove; 51, second transverse groove; 52, second circular groove; 53, insertion slot; 54, driving plate; 55, connecting strip; 56, film frame; 57, first through groove; 58, second through groove; 59, transmission groove; 60, L-shaped rod; 61, mounting block. Detailed implementation manners

[0030] The following further elaborates on the present invention in conjunction with the attached Figures 1-8 for a more detailed description.

[0031] Refer to Figures 1-8, an embodiment of the present invention discloses a film coating mechanism for coating an anti-rust film on a roll, including a bracket 1 and a roll main body 3. A moving plate 2 is arranged below the inner part of the bracket 1. The moving plate 2 is arranged on the bracket 1 through a moving structure. The roll main body 3 is arranged on the moving plate 2 through a supporting structure. A vertical plate 24 is installed on the rear side surface of the bracket 1. A first film coating structure and a second film coating structure are respectively arranged on the vertical plate 24. A winding structure is arranged above the bracket 1;

[0032] The supporting structure includes U-shaped rods 4 installed at positions close to the four corners on the upper surface of the moving plate 2. A first lifting plate 5 is movably sleeved on one section of each group of two U-shaped rods 4. A second lifting plate 6 is movably sleeved on the other section of each group of two U-shaped rods 4. Two first U-shaped plates 7 are connected to the upper surface of the two first lifting plates 5 close to both ends. Two second U-shaped plates 9 are connected to the upper surface of the two second lifting plates 6 close to the middle. A first support seat 8 is installed at the middle of the upper surface of the first U-shaped plate 7. A second support seat 10 is installed at the middle of the upper surface of the second U-shaped plate 9. The roll main body 3 is supported on the two first support seats 8. A switching structure is arranged on the moving plate 2;

[0033] The switching structure includes mounting plates 11 installed at the middle positions on both sides above the moving plate 2. A motor 12 is installed on the right side surface of one of the mounting plates 11. A bidirectional screw 13 passes through the two mounting plates 11 in a rotatable manner. One end of the output shaft of the motor 12 is connected to the bidirectional screw 13. The thread directions of the left and right sections of the bidirectional screw 13 are opposite. Moving seats 14 are sleeved on the bidirectional screw 13 near both ends. The moving plate 2 is provided with a guiding groove 19 for the moving seats 14 to slide, and the moving plate 2 is provided with a threaded groove for the bidirectional screw 13 to pass through. Driving rods 15 are connected to the top ends of the front and rear side surfaces of the moving seats 14. First driving grooves 16 are opened at both ends of the first lifting plate 5. Two second driving grooves 17 are opened at the middle of the first lifting plate 5. One end of the second driving groove 17 communicates with one end of the first driving groove 16, and the other ends of the two second driving grooves 17 communicate with each other. Third driving grooves 18 are opened at both sides of the second lifting plate 6, and the two third driving grooves 18 communicate with each other. Sponge pads are provided on the inner walls of the first support seat 8 and the second support seat 10 to prevent damage to the rust-proof film on the roll body 3 when supporting the roll body 3. Since the two first support seats 8 support both ends of the roll body 3, after the middle part of the roll body 3 is coated with the film, the motor 12 on the mounting plate 11 can be started. The motor 12 drives the bidirectional screw 13 to rotate, and the two moving seats 14 drive the driving rods 15 to move towards the middle. One end of the driving rod 15 slides in the third driving groove 18 on the second lifting plate 6 and the first driving groove 16 on the first lifting plate 5. One end of the driving rod 15 first presses against the groove wall of the third driving groove 18, pushing the second lifting plate 6 to move upward, thereby driving the second support seat 10 on the second U-shaped plate 9 to move upward to support the roll body 3 and support the roll body 3. Then the moving seat 14 continues to drive the driving rod 15 to move. One end of the driving rod 15 presses against the groove wall of the second driving groove 17, thereby pushing the first lifting plate 5 to move downward on the U-shaped rod 4. The first lifting plate 5 drives the first support seat 8 to move downward and separate from the roll body 3, thereby exposing both ends of the roll body 3. Then, the two ends of the roll body 3 are coated with the film, making the film coating of the roll body 3 more thorough. At the same time, the film coating work is more convenient, simple, and has higher work efficiency.

[0034] See Figures 1-3, the moving structure includes longitudinal grooves 22 opened at the lower parts of the inner walls on the left and right sides of the bracket 1. Moving strips 21 are installed at both left and right ends of the moving plate 2. The moving strips 21 are slidably arranged in the longitudinal grooves 22. Rollers 23 are installed at the four corners on the side surface of the moving plate 2. Cylinders 20 are installed at the left and right ends of the lower part of the rear side surface of the bracket 1. One end of the output shaft of the cylinder 20 is connected to the moving strip 21. Limiting plates 29 are connected to the upper two corners of the front side surface of the vertical plate 24. The limiting plates 29 are closely attached to both ends of the roll body 3. The front end of the limiting plate 29 is an inclined surface. When the moving seat 14 drives the two driving rods 15 to move to the positions at both ends of the first lifting plate 5 and the second lifting plate 6, the first lifting plate 5 and the second lifting plate 6 are both at the lowest positions on the U-shaped rod 4, thereby driving the roll body 3 downward and reducing the height of the roll body 3. Then, the cylinder 20 is started to drive the moving strip 21 to slide in the longitudinal groove 22, and the roll body 3 is pushed out of the bracket 1, facilitating the taking and placing work of the roll body 3;

[0035] The winding structure includes first fixing plates 25 connected to the middle parts of the left and right sides on the upper surface of the bracket 1. A cross bar 26 is rotatably passed through the two first fixing plates 25. A first film cylinder 27 is rotatably sleeved at the middle part of the cross bar 26. Second film cylinders 28 are rotatably sleeved at both ends of the cross bar 26 where the first film cylinder 27 is located. Anti-rust films are wound on both the first film cylinder 27 and the second film cylinder 28. The first film cylinder 27 and the second film cylinder 28 are used to wind and store the anti-rust films.

[0036] See Figures 1-8 , the first film covering structure is connected to the second fixing plates 30 at the upper left and right sides of the front side surface of the vertical plate 24. First grooves 34 are opened at the sides close to each other on the upper and lower side surfaces of the two second fixing plates 30. First moving frames 33 are slidably arranged in the two first grooves 34 on each second fixing plate 30. Two first driving strips 35 are arranged on the first moving frames 33 through first guiding structures. First film covering rollers 36 are connected to one ends of the upper and lower groups of first driving strips 35. A first micro-edge strip is arranged at a position close to the first moving frame 33 on the side surface of the upper first film covering roller 36. A first electric telescopic rod 31 is installed at the upper middle part of the rear side surface of the vertical plate 24. A first side plate 32 is connected between the two first moving frames 33. One end of the output shaft of the first electric telescopic rod 31 is connected to the first side plate 32. A strip feeding structure is arranged on the upper surface of the second fixing plate 30;

[0037] The first guiding structure includes two first sliding grooves 39 formed in the first moving frame 33. A first sliding block 38 is slidably arranged in the first sliding groove 39. A first inserting rod 37 fixedly passes through the first sliding block 38. The other end of the first driving strip 35 is fixedly sleeved on the first inserting rod 37. Two first horizontal grooves 40 are respectively formed on the mutually approaching side surfaces of the two second fixing plates 30. One end of the first inserting rod 37 is slidably arranged in the first horizontal groove 40. A first circular groove 41 is formed in the second fixing plate 30. The first circular groove 41 communicates with the two first horizontal grooves 40;

[0038] The second film covering structure includes second grooves 45 formed on the mutually remote side surfaces of the upper and lower sides of the two second fixing plates 30. A second moving frame 44 is slidably arranged in each group of two second grooves 45. Two second driving strips 46 are arranged on the second moving frame 44 through a second guiding structure. A second electric telescopic rod 42 is installed at the middle position of the rear inner wall of the bracket 1. One end of the output shaft of the second electric telescopic rod 42 is connected to a second side plate 43. Two ends of the second side plate 43 are respectively connected to the two second moving frames 44. A second film covering roller 47 is installed at one end of each second driving strip 46. A second micro-edge strip is arranged at a position close to the second moving frame 44 on the side surface of the upper second film covering roller 47;

[0039] The second guiding structure includes two second sliding grooves 50 formed in the second moving frame 44. A second sliding block 49 is slidably arranged in the second sliding groove 50. A second inserting rod 48 fixedly passes through the second sliding block 49. Two second horizontal grooves 51 are respectively formed at the middle positions of the mutually remote side surfaces of the two second fixing plates 30. One end of the second inserting rod 48 is slidably arranged in the second horizontal groove 51. The other end of the second driving strip 46 is fixedly sleeved on the second inserting rod 48. A second circular groove 52 is formed in the second fixing plate 30. The second circular groove 52 communicates with the two second horizontal grooves 51 respectively;

[0040] The strip structure includes a slot 53 opened in the middle of the upper surface of the second fixed plate 30. A driving plate 54 is movably inserted into the slot 53. A transmission slot 59 is opened on the driving plate 54. An L-shaped rod 60 movably passes through the transmission slot 59. The bottom end of the L-shaped rod 60 is connected to a mounting block 61. The mounting block 61 is fixedly connected to the first moving frame 33. A connecting strip 55 is connected to the upper front corner of the driving plate 54. A film strip frame 56 is mounted on one end of the two connecting strips 55. A first through slot 57 is opened in the middle of the film strip frame 56. Second through slots 58 are opened at both ends of the film strip frame 56. An anti-rust film movably passes through the first through slot 57 and the second through slots 58. When the roll body 3 is supported on the two first support seats 8, the first electric telescopic rod 31 is started to drive the first side plate 32 and the first moving frame 33 to move as a whole on the second fixed plate 30 towards the side close to the roll body 3, and drives one end of the first insertion rod 37 to slide in the first horizontal slot 40. The first moving frame 33 drives the first film coating rollers 36 at one end of the two groups of first driving strips 35 to push the anti-rust film on the first film cylinder 27 to be pressed tightly against the roll body 3. As the first moving frame 33 continues to move, it drives one end of the first insertion rod 37 to slide in the first circular slot 41, so as to drive the two first film coating rollers 36 to move around the circumferential side of the roll body 3, thereby covering the anti-rust film on the roll body 3. When the two first film coating rollers 36 move and are pressed tightly together, the anti-rust film contacts the first micro-edge strips on the first film coating rollers 36, completing the automatic cutting function of the anti-rust film after film coating. After the middle section of the roll body 3 is film-coated, the first electric telescopic rod 31 drives the two first film coating rollers 36 to move in the reverse direction and reset. And when the first moving frame 33 moves towards the side close to the roll body 3, it drives one end of the L-shaped rod 60 to slide in the transmission slot 59 on the driving plate 54, and pushes the driving plate 54 to move upward on the second fixed plate 30, thereby driving the film strip frame 56 at one end of the connecting strip 55 to move upward outside the anti-rust film, avoiding the film strip frame 56 from interfering with the normal film coating work. When the first moving frame 33 moves in the reverse direction and resets, it drives the film strip frame 56 to move downward again, driving one end of the cut anti-rust film to the side of the roll body 3 close to the vertical plate 24, playing a role in limiting the anti-rust film, so as to ensure that the film coating work can be carried out smoothly. When the roll body 3 is supported on the two second support seats 10, the two ends of the roll body 3 are exposed. At this time, the second electric telescopic rod 42 is started to drive the second side plate 43 and the second moving frame 44 to move as a whole on the second fixed plate 30 towards the side close to the roll body 3, and drives one end of the second insertion rod 48 to slide in the second horizontal slot 51. The second moving frame 44 drives the second film coating rollers 47 at one end of the two groups of second driving strips 46 to push the anti-rust film on the second film cylinder 28 to be pressed tightly against the roll body 3. As the second moving frame 44 continues to move, it drives one end of the second insertion rod 48 to slide in the second circular slot 52, so as to drive the two second film coating rollers 47 to move around the circumferential side of the roll body 3, thereby covering the anti-rust film on the roll body 3. When the two second film coating rollers 47 move and are pressed tightly together,The anti-rust film contacts the second micro-edge strip on the second film covering roller 47 for automatic cutting of the anti-rust film after film covering, thereby completing the film covering work on both ends of the roller body 3. Then, the second electric telescopic rod 42 drives the two second film covering rollers 47 to move in the reverse direction and reset.

[0041] The implementation principle of a film coating mechanism for coating an anti-rust film on a roll in an embodiment of the present invention is as follows: First, place the roll main body 3 to be film-coated on the first support seat 8 and the second support seat 10. Start the cylinder 20 to drive the moving bar 21 to slide in the longitudinal groove 22, and move the moving plate 2 and the roll main body 3 as a whole into the bracket 1. Then start the motor 12 to drive the bidirectional screw 13 to rotate. The two moving seats 14 drive the driving rod 15 to move towards the middle. When one end of the driving rod 15 slides in the first driving groove 16, it drives the first lifting plate 5 to move upward on the U-shaped rod 4, and drives the roll main body 3 to move upward to the film coating position through the two first support seats 8. Then, start the first electric telescopic rod 31 to drive the first side plate 32 and the first moving frame 33 as a whole to move towards the side close to the roll main body 3 on the second fixing plate 30, and drive one end of the first inserting rod 37 to slide in the first transverse groove 40. The first moving frame 33 drives the first film coating rollers 36 at one ends of the two groups of first driving strips 35 to push the anti-rust film on the first film cylinder 27 to be pressed tightly against the roll main body 3. As the first moving frame 33 continues to move, it drives one end of the first inserting rod 37 to slide in the first circular groove 41, so as to drive the two first film coating rollers 36 to move around the circumferential side of the roll main body 3, thereby coating the anti-rust film on the roll main body 3. When the two first film coating rollers 36 move and are pressed tightly together, the anti-rust film contacts the first micro-edge strips on the first film coating rollers 36, completing the automatic cutting function of the anti-rust film after film coating. After coating the middle section of the roll main body 3, the first electric telescopic rod 31 drives the two first film coating rollers 36 to move in the reverse direction and reset. And when the first moving frame 33 moves towards the side close to the roll main body 3, it drives one end of the L-shaped rod 60 to slide in the transmission groove 59 on the driving plate 54, and pushes the driving plate 54 to move upward on the second fixing plate 30, thereby driving the film carrying frame 56 at one end of the connecting strip 55 to move upward on the outer side of the anti-rust film, avoiding the film carrying frame 56 from interfering with the normal film coating work. When the first moving frame 33 moves in the reverse direction and resets, it drives the film carrying frame 56 to move downward again, driving one end of the cut anti-rust film to the side of the roll main body 3 close to the vertical plate 24, playing a limiting role on the anti-rust film, so as to ensure that the film coating work can be carried out smoothly. Then, start the motor 12 to continue driving the bidirectional screw 13 to rotate. The two moving seats 14 continue to drive the two driving rods 15 to move towards the middle. One end of the driving rod 15 first presses the wall of the third driving groove 18, pushing the second lifting plate 6 to move upward, thereby driving the second support seat 10 on the second U-shaped plate 9 to move upward to support the roll main body 3, supporting the roll main body 3. Then the moving seat 14 continues to drive the driving rod 15 to move. One end of the driving rod 15 presses the wall of the second driving groove 17, thereby pushing the first lifting plate 5 to move downward on the U-shaped rod 4. The first lifting plate 5 drives the first support seat 8 to move downward and separate from the roll main body 3, thereby exposing the two ends of the roll main body 3. At this time, start the second electric telescopic rod 42 to drive the second side plate 43 and the second moving frame 44 as a whole to move towards the side close to the roll main body 3 on the second fixing plate 30,And it drives one end of the second insertion rod 48 to slide in the second horizontal groove 51. The second moving frame 44 drives the second film covering roller 47 at one end of the two groups of second driving strips 46 to push the anti-rust film on the second film cylinder 28 against the roller main body 3. As the second moving frame 44 continues to move, it drives one end of the second insertion rod 48 to slide in the second circular groove 52, so as to drive the two second film covering rollers 47 to move around the circumferential side of the roller main body 3, thereby covering the anti-rust film on the roller main body 3. When the two second film covering rollers 47 move and are pressed together, the anti-rust film contacts the second micro-edge strips on the second film covering rollers 47, automatically cutting the anti-rust film after film covering, so as to complete the film covering work at both ends of the roller main body 3. Then, the second electric telescopic rod 42 drives the two second film covering rollers 47 to move in the reverse direction and reset. In this way, the film covering work of the roller main body 3 can be realized, the film covering of the roller main body 3 is more thorough, and the film covering work efficiency is also higher.

[0042] The above are all the preferred embodiments of the present invention. The protection scope of the present invention is not limited by this. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A coating mechanism for coating a roller with an anti-rust film, comprising a support (1) and a roller body (3), characterized in that: A movable plate (2) is arranged at the lower part of the support (1), the movable plate (2) is arranged on the support (1) via a movable structure, a roller body (3) is arranged on the movable plate (2) via a supporting structure, a vertical plate (24) is installed on the rear side of the support (1), a first laminating structure and a second laminating structure are respectively arranged on the vertical plate (24), and a winding structure is arranged on the upper part of the support (1); The support structure comprises U-shaped rods (4) mounted on the movable plate (2) near four corners, a first lifting plate (5) is movably mounted on one section of each group of two U-shaped rods (4), a second lifting plate (6) is movably mounted on the other section of each group of two U-shaped rods (4), two first U-shaped plates (7) are connected near both ends of the two first lifting plates (5), two second U-shaped plates (9) are connected near the middle of the two second lifting plates (6), a first support seat (8) is mounted in the middle of the first U-shaped plates (7), a second support seat (10) is mounted in the middle of the second U-shaped plates (9), the roller body (3) is supported on the two first support seats (8), and a switching structure is provided on the movable plate (2).

2. The coating mechanism for coating a roller with an anti-rust film according to claim 1, characterized in that: The switching structure comprises mounting plates (11) mounted at the middle of both sides of the movable plate (2), a motor (12) being mounted on the right side of one of the mounting plates (11), a bidirectional screw (13) being rotatably passed through the two mounting plates (11), one end of the output shaft of the motor (12) being connected to the bidirectional screw (13), the left and right sections of the bidirectional screw (13) having opposite thread directions, a movable seat (14) being sleeved near both ends of the bidirectional screw (13), a guide groove (19) for the movable seat (14) to slide on the movable plate (2), and a guide groove (19) being provided on the movable plate (2). A thread groove is provided for a bidirectional screw rod (13) to pass through, driving rods (15) are connected to the top ends of the front and rear side surfaces of the movable seat (14), first driving grooves (16) are provided at both ends of the first lifting plate (5), two second driving grooves (17) are provided in the middle of the first lifting plate (5), one end of the second driving groove (17) is connected to one end of the first driving groove (16), and the other ends of the two second driving grooves (17) are connected to each other, and third driving grooves (18) are provided at both sides of the second lifting plate (6), and the two third driving grooves (18) are connected to each other.

3. The coating mechanism for coating a roller with an anti-rust film according to claim 1, characterized in that: The moving structure comprises longitudinal grooves (22) provided at the lower part of the inner walls on the left and right sides of the bracket (1); moving bars (21) are installed at both the left and right ends of the moving plate (2); the moving bars (21) are slidably arranged in the longitudinal grooves (22); rollers (23) are installed at the four corners of the side of the moving plate (2); cylinders (20) are installed at both the left and right ends of the lower part of the rear side of the bracket (1); one end of the output shaft of the cylinder (20) is connected to the moving bar (21); and limiting plates (29) are connected at the two corners above the front side of the vertical plate (24); the limiting plates (29) are closely attached to the two ends of the roller body (3); and the front end of the limiting plates (29) is an inclined surface.

4. The coating mechanism for coating a roller with an anti-rust film according to claim 1, characterized in that: The winding structure comprises a first fixed plate (25) connected to the middle of the left and right sides of the bracket (1); two of the first fixed plates (25) are rotatably passed through a cross bar (26); a first film cylinder (27) is rotatably sleeved on the middle of the cross bar (26); second film cylinders (28) are rotatably sleeved at both ends of the first film cylinder (27) on the cross bar (26); and anti-rust film is rolled up on both the first film cylinder (27) and the second film cylinder (28).

5. The coating mechanism for coating a roller with an anti-rust film according to claim 1, characterized in that: The first coating structure is connected to the second fixed plates (30) on the left and right sides above the front side of the vertical plate (24); the upper and lower sides of the two second fixed plates (30) are each provided with a first groove (34) near one side; a first moving frame (33) is slidably arranged in the two first grooves (34) on each of the second fixed plates (30); two first driving bars (35) are arranged on the first moving frame (33) through a first guide structure; the upper and lower groups of the first driving bars (35) are each connected to a first coating roller (36) at one end; a first micro-blade strip is arranged on the side of the first coating roller (36) near the first moving frame (33); a first electric telescopic rod (31) is installed at the middle upper part of the rear side of the vertical plate (24); a first side plate (32) is connected between the two first moving frames (33); one end of the output shaft of the first electric telescopic rod (31) is connected to the first side plate (32); and a material belt structure is arranged on the upper part of the second fixed plate (30).

6. The coating mechanism for coating a roller with an anti-rust film according to claim 5, characterized in that: The first guide structure comprises two first slide grooves (39) provided on the first movable frame (33), a first slider (38) being slidably arranged in the first slide groove (39), a first insertion rod (37) being fixedly passed through the first slider (38), the other end of the first driving strip (35) being fixedly sleeved on the first insertion rod (37), two first transverse grooves (40) being respectively provided on one side surface of two second fixing plates (30) close to each other, one end of the first insertion rod (37) being slidably arranged in the first transverse groove (40), a first circular groove (41) being provided on the second fixing plate (30), and the first circular groove (41) being connected with the two first transverse grooves (40).

7. The coating mechanism for coating a roller with an anti-rust film according to claim 5, characterized in that: The second coating structure comprises second grooves (45) provided on the upper and lower side surfaces of the two second fixed plates (30) away from each other, a second movable frame (44) is slidably arranged in each group of two second grooves (45), two second driving strips (46) are arranged on the second movable frame (44) through a second guide structure, a second electric telescopic rod (42) is installed in the middle of the inner wall on the rear side of the bracket (1), one end of the output shaft of the second electric telescopic rod (42) is connected to the second side plate (43), and the two ends of the second side plate (43) are respectively connected to the two second movable frames (44), a second coating roller (47) is installed on one end of each second driving strip (46), and a second micro-blade strip is arranged on the side of the upper second coating roller (47) near the second movable frame (44).

8. The coating mechanism for coating a roller with an anti-rust film according to claim 7, characterized in that: The second guide structure comprises two second slide grooves (50) provided on the second movable frame (44), a second slider (49) being slidably arranged in the second slide grooves (50), a second insertion rod (48) being fixedly passed through the second slider (49), two second transverse grooves (51) being respectively provided at the middle of a side surface away from each other of the two second fixing plates (30), one end of the second insertion rod (48) being slidably arranged in the second transverse groove (51), the other end of the second driving bar (46) being fixedly sleeved on the second insertion rod (48), a second circular groove (52) being provided on the second fixing plate (30), the second circular groove (52) being respectively connected with the two second transverse grooves (51).

9. The coating mechanism for coating a roller with an anti-rust film according to claim 5, characterized in that: The material stripping structure comprises a slot (53) provided in the middle of the second fixed plate (30), a driving plate (54) being movably inserted into the slot (53), a transmission slot (59) being provided on the driving plate (54), an L-shaped rod (60) being movably passed through the transmission slot (59), a bottom end of the L-shaped rod (60) being connected to a mounting block (61), the mounting block (61) being fixedly connected to the first movable frame (33), a connecting strip (55) being connected to the driving plate (54) near the upper front corner, a film stripping frame (56) being mounted on one end of two connecting strips (55), a first through slot (57) being provided in the middle of the film stripping frame (56), second through slots (58) being provided at both ends of the film stripping frame (56), and an anti-rust film being movably passed through the first through slot (57) and the second through slot (58).

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