Novel color plate laminating device and process

Abstract

The application relates to a novel color plate film covering equipment and process, which comprises a rack, a film covering roller rack arranged on the rack, a feeding mechanism arranged above the film covering roller, and a tensioning mechanism arranged between the film covering roller and the feeding mechanism. The tensioning mechanism comprises a fixed shaft arranged on the rack, roller shafts fixedly connected to the two ends of the fixed shaft, the roller shafts being rotatably connected to the rack, positioning discs fixedly connected to the two ends of the fixed shaft, guide grooves arranged on the positioning discs, guide rods arranged in the guide grooves, the guide rods being slidably connected to the guide grooves, tensioning rollers rotatably connected to one end of the guide rods extending out of the guide grooves, driving assemblies arranged on the roller shafts, and pressure sensors arranged on the rack and used for detecting the pressure of the protective film between the feeding mechanism and the film covering roller. The application has the effects of reducing the shaking of the protective film transmitted to the film covering roller, reducing the wrinkles of the protective film after film covering, and not affecting the quality of the steel plate film covering.

Description

Technical Field

[0001] This application relates to the field of steel plate coating, and in particular to a novel equipment and process for coating color steel plates. Background Technology

[0002] Color-coated steel sheets are lightweight, aesthetically pleasing, and have good corrosion resistance. They are mainly used for products such as refrigerator shells, refrigerator side panels, microwave oven shells, air conditioner shells, and washing machine shells. A plastic sheet and a protective film are sequentially coated onto the steel sheet. The plastic sheet is either PET or PVC.

[0003] When laminating steel plates, steel plate laminating machines are commonly used. A laminating machine is a device that can coat steel plates with films such as polyester film, aluminized film, or polyolefin film. It is widely used in the laminating industry to achieve coloring of steel plates. During operation, the steel plate is conveyed forward from the laminating machine. The machine is equipped with a feeding roller, on which a protective film roll is wound. The protective film is conveyed onto the steel plate and then onto the laminating roller. During this process, the protective film is prone to uneven tension, which can easily cause the film to vibrate, resulting in wrinkles on the steel plate and affecting the quality of the lamination. Summary of the Invention

[0004] In order to reduce the vibration of the protective film conveyed to the coating roller, reduce the wrinkles of the protective film after coating, and not affect the quality of steel plate coating, this application provides a novel color plate coating equipment.

[0005] The novel color steel plate coating equipment provided in this application adopts the following technical solution:

[0006] A novel color steel plate laminating equipment includes a frame, on which a laminating roller is mounted. A feeding mechanism is positioned above the laminating roller and is used to transfer protective film to the laminating roller. A tensioning mechanism is positioned between the laminating roller and the feeding mechanism. The tensioning mechanism includes a fixed shaft mounted on the frame, with roller shafts fixedly connected to both ends. The roller shafts are rotatably connected to the frame. Positioning discs are fixedly connected to both ends of the fixed shaft. Guide grooves are formed on the positioning discs, and guide rods are disposed within these grooves. The guide rods are slidably connected within the guide grooves, and a tensioning roller is rotatably connected to one end of the guide rod extending out of the guide groove. A driving assembly is mounted on the roller shafts to drive the guide rods to slide outward from the positioning discs, causing the tensioning roller to abut against the protective film. A pressure sensor is mounted on the frame to detect the pressure of the protective film between the feeding mechanism and the laminating roller. When the pressure sensor detects that the pressure value of the protective film is less than a preset value, it controls the driving assembly to push the guide rods outward.

[0007] By adopting the above technical solution, the pressure sensor detects the pressure value of the plastic film between the feeding mechanism and the coating roller in real time. When the detected pressure value is less than the preset value, it indicates that the protective film is in a relaxed state. The control drive component drives the guide rod to slide outward. The guide rod slides outward so that the tensioning roller presses against the protective film to tighten the protective film, reducing the vibration of the protective film transmitted to the coating roller, reducing wrinkles in the protective film after coating, and not affecting the quality of steel plate coating.

[0008] Optionally, a push rod is fixedly connected to the end of the guide rod extending into the guide groove. The drive assembly includes a drive disk rotatably connected to the roller shaft. The drive disk is sleeved on the roller shaft and has an arc-shaped drive groove. The push rod on the guide rod is inserted into the drive groove and can slide along the drive groove. A fixed disk is fixedly connected to the side of the roller shaft drive disk away from the positioning disk. A drive component is provided on the side of the fixed disk close to the drive disk to drive the drive disk to rotate and push the push rod to slide in the drive groove.

[0009] By adopting the above technical solution, the driving component drives the driving disk to rotate, and the driving groove of the driving disk pushes the push rod to slide in the driving groove. When the push guide rod slides outward, the guide rod pushes the tension roller to slide outward until the tension roller abuts against the protective film, thus tightening the protective film, thereby reducing the looseness of the protective film and reducing wrinkles after lamination.

[0010] Optionally, the power component includes a gear fixedly connected to the center of the drive disk, and a cylinder fixedly connected to the fixed disk. The cylinder body is fixedly connected to the fixed disk, and a rack is fixedly connected to the end of the piston rod of the cylinder. The rack meshes with the gear on the drive disk.

[0011] By adopting the above technical solution, when the pressure sensor detects that the pressure value of the protective film is less than the preset value, it indicates that the protective film is in a relaxed state. The piston rod of the control cylinder extends, and the cylinder drives the gear to rotate through the rack. The gear drives the drive disk to rotate, and the drive groove of the drive disk pushes the push rod to slide in the drive groove, which in turn pushes the guide rod to slide outward. The guide rod pushes the tension roller to slide outward until the tension roller abuts against the protective film, thus tightening the protective film, thereby reducing the relaxation of the protective film and reducing the wrinkles that appear after coating.

[0012] Optionally, a power motor is fixedly connected to the frame. The output shaft of the power motor is arranged in the shape of a regular polygon. A slot in the shape of a regular polygon is opened at the end of the roller near the power motor. The slot is used for the insertion of the output shaft of the power motor. The shape of the slot corresponds one-to-one with the shape of the output shaft of the power motor. The roller can slide along the output shaft of the power motor. A power component is provided on the frame to drive the fixed shaft to slide horizontally on the frame. A distance sensor is provided on the frame to detect whether the position of the protective film has shifted in real time. When the position of the protective film is detected to have shifted, the power component and the power motor are controlled to work simultaneously.

[0013] By adopting the above technical solution, the distance sensor is used to detect the position of the protective film in real time. When the distance sensor detects that the position of the protective film is greater than the preset value, the power motor is controlled to drive the roller shaft to rotate, which in turn drives the tension roller against the protective film to rotate. The power component drives the roller shaft to slide horizontally and at the same time drives the tension roller to rotate. The friction between the tension roller and the protective film can move the protective film in the direction of the roller shaft to slide, thereby achieving the effect of correction.

[0014] Optionally, the positioning disk has four guide slots arranged radially within the positioning disk. Two adjacent guide slots form a 90-degree right angle with the center of the positioning disk. Each guide slot is slidably connected to a guide rod, and the end of each guide rod away from the push rod is rotatably connected to a tension roller. The driving disk has four driving slots.

[0015] By adopting the above technical solution, when the power component drives the roller to slide horizontally, the roller slides horizontally and simultaneously drives the tension roller to rotate. The four tension rollers sequentially drive the protective film to move in the direction of the roller sliding, which can quickly correct the deviation of the protective film and improve the deviation correction efficiency.

[0016] Optionally, the power component includes a hydraulic cylinder one and a hydraulic cylinder two disposed on both sides of the frame. The piston rods of the hydraulic cylinder one and the hydraulic cylinder two are arranged facing each other. The cylinder bodies of the hydraulic cylinder one and the hydraulic cylinder two are fixedly connected to the frame. The ends of the piston rods of the hydraulic cylinder one and the hydraulic cylinder two are respectively connected to the roller shaft.

[0017] By adopting the above technical solution, when the distance sensor detects that the distance to the protective film is greater than a preset value, for example, if the protective film shifts to one side of hydraulic cylinder one, the piston rod of hydraulic cylinder one is extended, while the piston rod of hydraulic cylinder two is retracted, and the power motor is controlled to drive the fixed shaft to rotate. The fixed shaft drives the tension roller to rotate, and the fixed shaft drives the tension roller to slide to one side. The friction between the tension roller and the protective film pushes the protective film to one side of hydraulic cylinder two. Conversely, if the protective film shifts to one side of hydraulic cylinder two, the piston rod of hydraulic cylinder two is extended, while the piston rod of hydraulic cylinder one is retracted, and the power motor is controlled to drive the fixed shaft to rotate, thereby adjusting the position of the protective film, reducing the positional shift of the protective film, and achieving the effect of correcting the deviation of the protective film.

[0018] Optionally, the roller shaft is provided with an end face thrust bearing. The side of the end face thrust bearing closest to the fixed shaft is fixed to the roller shaft, and the side furthest from the fixed shaft is rotatably connected to the roller shaft. The piston rod ends of hydraulic cylinder one and hydraulic cylinder two are respectively fixedly connected to the opposite side of the end face thrust bearing.

[0019] By adopting the above technical solution, when the drive motor drives the roller shaft to rotate, the end face thrust bearing on the side away from the roller shaft does not rotate, and can push the end face direct thrust bearing to slide, thereby driving the roller shaft and tension roller to slide in the horizontal direction.

[0020] Optionally, the feeding mechanism includes a feeding frame slidably connected to the frame, with bolts threaded onto the feeding frame for fixing the feeding frame and the feeding rod; two support seats are fixedly connected to both ends of the top of the feeding frame, and the support seats on the two feeding frames are arranged one-to-one, with each pair of corresponding support seats used to support the protective film roller, and a notch is provided on the top of the support seat, with both ends of the protective film roller rotatably connected to the notch of the support seat.

[0021] By adopting the above technical solution, the notch groove facilitates the replacement of the protective film roller. At the same time, placing two protective film rollers allows for operation without prolonged downtime. When one protective film roller is used up, the other protective film roller can be slid to the corresponding position in a timely manner and the film can continue to be applied, saving the time of replacing the protective film roller.

[0022] This application also provides a novel color steel plate coating equipment with a coating process that employs the following technical solution:

[0023] A novel lamination process for color steel plate laminating equipment includes the following steps:

[0024] S1. Steel plate loading: The steel plates are placed in an orderly manner on the laminating machine and transported on the frame.

[0025] S2. Applying adhesive to steel plate: Add the pre-mixed adhesive to the coating tank of the laminating machine, and apply the adhesive to the surface of the steel plate by dipping the coating roller in the adhesive.

[0026] S3: Coating; The protective film on the protective film roller is transferred towards the coating roller and passes through the bottom of the coating roller. The steel plate also passes through the bottom of the coating roller, and the coating roller presses the protective film onto the surface of the steel plate.

[0027] S4. Cooling and air drying: After the steel plate is coated, it is transported to a water-cooling device for water cooling and then air drying to complete the coating.

[0028] By adopting the above technical solution, during the processing, the steel plate is placed in an orderly manner on the laminating machine. The steel plate is conveyed on the frame towards the laminating roller. The coating roller dips in glue and coats it on the surface of the steel plate. The laminating roller presses the protective film onto the steel plate. After the steel plate is laminated, it is conveyed to the water cooling device for water cooling and then air drying to complete the lamination. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0030] Figure 2 This is a structural schematic diagram to highlight the feeding mechanism in Embodiment 1.

[0031] Figure 3 This is a cross-sectional view of the tensioning mechanism in Embodiment 1.

[0032] Figure 4 This is an exploded view of the tensioning mechanism in Embodiment 1.

[0033] Figure 5 This is an exploded view of Embodiment 1 to highlight the slot and the output shaft of the power motor.

[0034] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Coating roller; 12. Drive motor; 2. Feeding mechanism; 21. Feeding rod; 211. T-shaped chute; 22. Feeding rack; 221. T-shaped slider; 23. Support seat; 24. Notch; 3. Tensioning mechanism; 31. Fixed shaft; 311. Roller shaft; 312. Slot; 32. Positioning plate; 321. Guide groove; 322. Guide rod; 323. Push rod; 324. Tensioning roller; 33. Drive plate; 331. Drive groove; 332. Gear; 34. Fixed plate; 341. Cylinder; 342. Rack; 35. Power motor; 36. End face thrust bearing; 37. Hydraulic cylinder one; 38. Hydraulic cylinder two. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0036] Example 1:

[0037] Embodiment 1 of this application discloses a novel color-coated steel sheet laminating device. (Refer to...) Figure 1 A novel color steel plate laminating equipment includes a frame 1, on which a laminating roller 11 is mounted and rotatably connected. A drive motor 12 is fixedly connected to the frame 1 and is used to drive the laminating roller 11 to rotate. A feeding mechanism 2 is provided above the laminating roller 11 on the frame 1 and is used to transfer protective film to the laminating roller 11.

[0038] Reference Figure 2Two feeding rods 21 are fixedly connected to the top of the frame 1. The feeding rods 21 are parallel to each other and have T-shaped grooves 211 at their tops. The feeding mechanism 2 includes a feeding frame 22 that is slidably connected to the feeding rods 21. A T-shaped slider 221 is fixedly connected to the bottom of the feeding frame 22 and is slidably connected to the T-shaped groove 211. Bolts are threaded onto the feeding frame 22 to fix the feeding frame 22 and the feeding rods 21. Two support seats 23 are fixedly connected to both ends of the top of the feeding frame 22. The support bases 23 are set one-to-one, and a protective film roller is rotatably connected to each pair of corresponding support bases 23. The axial direction of the protective film roller is parallel to the top of the support base 23 and a notch 24 is opened. The two ends of the protective film roller are rotatably connected to the notch 24 of the support base 23. The notch 24 facilitates the replacement of the protective film roller. The simultaneous placement of two protective film rollers facilitates operation without stopping the machine. When one protective film roller is used up, the other protective film roller can be slid to the corresponding position in time and continue to cover the film, saving the time of replacing the protective film roller.

[0039] Reference Figure 3 and Figure 4In order to reduce the loosening and shaking of the protective film during the transfer from the protective film roller to the coating roller 11, a tensioning mechanism 3 is provided on the frame 1. The tensioning mechanism 3 includes a fixed shaft 31 mounted on the frame 1. Roller shafts 311 are fixedly connected to both ends of the fixed shaft 31, and the roller shafts 311 are rotatably connected to the frame 1. The axial direction of the fixed shaft 31 is parallel to the axial direction of the coating roller 11, and the fixed shaft 31 is located between the coating roller 11 and the feeding rack 22. Positioning discs 32 are fixedly connected to both ends of the fixed shaft 31. Four guide grooves 321 are provided on the positioning discs 32, arranged radially within the positioning discs 32. Two adjacent guide grooves 321 form a 90-degree right angle with the center of the positioning disc 32. Guide rods 322 are provided within the guide grooves 321, slidingly connected to them. A push rod 323 is fixedly connected to the end of the guide rod 322 extending into the guide groove 321. A tensioning roller 3 is rotatably connected to the end of the guide rod 322 away from the push rod 323. 24; A drive disk 33 is rotatably connected to the roller shaft 311. The drive disk 33 is sleeved on the roller shaft 311. The drive disk 33 has four drive grooves 331, which are arc-shaped. The push rod 323 on the guide rod 322 is inserted into the drive groove 331 and can slide along the drive groove 331. A gear 332 is fixedly connected to the middle of the drive disk 33. The middle of the gear 332 is hollow. The roller shaft 311 passes through the middle of the gear 332. A fixed disk 34 is fixedly connected to the roller shaft 311. The fixed disk 34 is located on the side of the drive disk 33 away from the positioning disk 32. A cylinder 341 is fixedly connected to the side of the fixed disk 34 close to the drive disk 33. The cylinder body of the cylinder 341 is fixedly connected to the fixed disk 34. A rack 342 is fixedly connected to the end of the piston rod of the cylinder 341. The rack 342 meshes with the gear 332 on the drive disk 33. A pressure sensor is installed on the laminating roller 11. The pressure sensor is used to detect the pressure transmitted to the protective film on the laminating roller 11 and thus determine whether the protective film unwound from between the protective film roller and the laminating roller 11 is in a slack state. When the pressure sensor detects that the pressure value of the protective film is less than a preset value, it means that the protective film is in a slack state. The piston rod of the control cylinder 341 extends, and the cylinder 341 drives the gear 332 to rotate through the rack 342. The gear 332 drives the drive disk 33 to rotate. The drive groove 331 of the drive disk 33 pushes the push rod 323 to slide in the drive groove 331, which in turn pushes the guide rod 322 to slide outward. The guide rod 322 pushes the tension roller 324 to slide outward until the tension roller 324 abuts against the protective film, tightening the protective film, thereby reducing the slack of the protective film and reducing wrinkles after lamination.

[0040] Reference Figure 3 and Figure 5Both ends of the roller 311 extend out of the frame 1. A power motor 35 is fixedly connected to the frame 1. The output shaft of the power motor 35 is a regular polygon, shown as a regular hexagon in the figure, but not limited to a regular hexagon. A regular polygonal slot 312 is opened at the end of the roller 311 near the power motor 35. The slot 312 is used for the insertion of the output shaft of the power motor 35. The slot 312 is shown as a regular hexagon in the figure, but is not limited to a regular hexagon. The shape of the slot 312 corresponds to the shape of the output shaft of the power motor 35. The roller 311 can slide along the output shaft of the power motor 35. A thrust bearing 36 is provided on the roller 311. The side of the thrust bearing 36 closest to the fixed shaft 31 is fixed to the roller 311, while the side furthest from the fixed shaft 31 is rotatably connected to the roller 311 but not directly connected to it. When the drive motor 12 drives the roller 311 to rotate, the side of the thrust bearing 36 furthest from the roller 311 does not rotate. Hydraulic cylinders 37 and 38 are fixedly connected to both sides of the frame 1, respectively. The piston rods of hydraulic cylinders 37 and 38 face each other and are located at both ends of the fixed shaft 31. The cylinder bodies of hydraulic cylinders 37 and 38 are fixedly connected to the frame 1, and the ends of the piston rods of hydraulic cylinders 37 and 38 are fixedly connected to the thrust bearing 36. A distance sensor is provided on the frame 1 to detect the position of the protective film during transmission. The system determines whether a shift occurs. When the distance sensor detects that the distance to the protective film is greater than a preset value, for example, if the protective film shifts to one side of hydraulic cylinder 37, the piston rod of hydraulic cylinder 37 is extended, while the piston rod of hydraulic cylinder 38 is retracted. The power motor 35 is then controlled to drive the fixed shaft 31 to rotate. The fixed shaft 31 drives the tension roller 324 to rotate and slides it to one side. The friction between the tension roller 324 and the protective film pushes the protective film to one side of hydraulic cylinder 38. Conversely, if the protective film shifts to one side of hydraulic cylinder 38, the piston rod of hydraulic cylinder 38 is extended, while the piston rod of hydraulic cylinder 37 is retracted. The power motor 35 is then controlled to drive the fixed shaft 31 to rotate, thereby adjusting the position of the protective film, reducing the positional shift of the protective film, and achieving the effect of correcting the deviation of the protective film.

[0041] The implementation principle of a novel color-coated steel sheet laminating device according to Embodiment 1 of this application is as follows: the protective film roller transmits the protective film to the laminating roller 11. The pressure sensor detects the pressure value of the protective film in real time. When the pressure sensor detects that the pressure value of the protective film is less than the preset value, it indicates that the protective film is in a relaxed state. The piston rod of the control cylinder 341 extends, and the cylinder 341 drives the gear 332 to rotate through the rack 342. The gear 332 drives the drive disk 33 to rotate. The drive groove 331 of the drive disk 33 pushes the push rod 323 to slide in the drive groove 331, thereby pushing the guide rod 322 to slide outward. The guide rod 322 pushes the tension roller 324 to slide outward until the tension roller 324 abuts against the protective film, thus tensioning the protective film. The distance sensor detects the position of the protective film to the side of the frame 1 in real time. When the detected distance exceeds a preset value, if the protective film shifts to one side of hydraulic cylinder 37, the piston rod of hydraulic cylinder 37 is extended, while the piston rod of hydraulic cylinder 38 retracts. The power motor 35 is then controlled to drive the fixed shaft 31 to rotate. The fixed shaft 31 drives the tension roller 324 to rotate and slide it to one side. The friction between the tension roller 324 and the protective film pushes the protective film to one side of hydraulic cylinder 38. Conversely, if the protective film shifts to one side of hydraulic cylinder 38, the piston rod of hydraulic cylinder 38 is extended, while the piston rod of hydraulic cylinder 37 retracts. The power motor 35 is then controlled to drive the fixed shaft 31 to rotate, thereby adjusting the position of the protective film, reducing its positional shift, and achieving the effect of correcting the protective film's deviation.

[0042] Example 2:

[0043] Embodiment 2 of this application discloses a novel coating process for color steel plate coating equipment, comprising the following steps:

[0044] S1. Steel plate loading: The steel plates are placed in an orderly manner on the laminating machine and transported on the frame 1.

[0045] S2. Applying adhesive to steel plate: Add the pre-mixed adhesive to the coating tank of the laminating machine, and apply the adhesive to the surface of the steel plate by dipping the coating roller in the adhesive.

[0046] S3: Coating; The protective film on the protective film roller is transferred to the coating roller 11 and passes through the bottom of the coating roller 11. The steel plate also passes through the bottom of the coating roller 11, and the coating roller 11 presses the protective film onto the surface of the steel plate.

[0047] The frame 1 is equipped with a pressure sensor that detects the pressure value of the protective film transmitted to the coating roller 11 in real time. When the pressure sensor detects that the pressure value of the protective film is less than the preset value, it means that the protective film is in a relaxed state. The piston rod of the control cylinder 341 extends, and the cylinder 341 drives the gear 332 to rotate through the rack 342. The gear 332 drives the drive disk 33 to rotate. The drive groove 331 of the drive disk 33 pushes the push rod 323 to slide in the drive groove 331, which in turn pushes the guide rod 322 to slide outward. The guide rod 322 pushes the tension roller 324 to slide outward until the tension roller 324 abuts against the protective film, thus tensioning the protective film.

[0048] Furthermore, a distance sensor is installed on the frame 1 to detect whether the protective film deviates during transmission. If the protective film deviates to one side of hydraulic cylinder 37, the piston rod of hydraulic cylinder 37 is extended, while the piston rod of hydraulic cylinder 38 is retracted. The power motor 35 is then controlled to drive the fixed shaft 31 to rotate, which in turn drives the tension roller 324 to rotate and slide to one side. The friction between the tension roller 324 and the protective film pushes the protective film to one side of hydraulic cylinder 38. Conversely, if the protective film deviates to one side of hydraulic cylinder 38, the piston rod of hydraulic cylinder 38 is extended, while the piston rod of hydraulic cylinder 37 is retracted. The power motor 35 is then controlled to drive the fixed shaft 31 to rotate, thereby adjusting the position of the protective film, reducing its positional deviation, and achieving the effect of correcting the film's deviation.

[0049] S4. Cooling and air drying: After the steel plate is coated, it is transported to a water-cooling device for water cooling and then air drying to complete the coating.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A color plate film covering equipment, comprising a rack (1), a film covering roller (11) is arranged on the rack (1), a feeding mechanism (2) is arranged above the film covering roller (11) of the rack (1), and the feeding mechanism (2) is used for transmitting a protective film to the film covering roller (11), characterized in that: The rack (1) is located between the film laminating roller (11) and the feeding mechanism (2) and is provided with a tensioning mechanism (3); the tensioning mechanism (3) comprises a fixed shaft (31) arranged on the rack (1), both ends of the fixed shaft (31) are fixedly connected with roller shafts (311), the roller shafts (311) are rotatably connected to the rack (1), both ends of the fixed shaft (31) are fixedly connected with positioning discs (32), the positioning discs (32) are provided with guide grooves (321), the guide grooves (321) are provided with guide rods (322), the guide rods (322) are slidably connected in the guide grooves (321), one end of the guide rod (322) extending out of the guide groove (321) is rotatably connected with a tensioning roller (324), the roller shaft (311) is provided with a driving assembly for driving the guide rod (322) to slide out of the positioning disc (32) so that the tensioning roller (324) abuts against the protective film, the rack (1) is provided with a pressure sensor for detecting the pressure of the protective film between the feeding mechanism (2) and the film laminating roller (11), when the pressure sensor detects that the pressure value of the protective film is less than a preset value, the driving assembly is controlled to push the guide rod (322) to slide outward; The end of the guide rod (322) extending into the guide groove (321) is fixedly connected with a push rod (323), the driving assembly comprises a driving disc (33) rotatably connected to the roller shaft (311), the driving disc (33) is sleeved on the roller shaft (311), the driving disc (33) is provided with an arc-shaped driving groove (331), the push rod (323) on the guide rod (322) is inserted into the driving groove (331) and can slide along the driving groove (331), the roller shaft (311) is fixedly connected with a fixed disc (34) on the side away from the positioning disc (32), the side of the fixed disc (34) close to the driving disc (33) is provided with a driving piece for driving the driving disc (33) to rotate to push the push rod (323) to slide in the driving groove (331); The rack (1) is fixedly connected with a power motor (35), the output shaft of the power motor (35) is arranged in a regular polygon, the end of the roller shaft (311) close to the power motor (35) is provided with a regular polygon-shaped insertion slot (312), the insertion slot (312) is used for inserting the output shaft of the power motor (35), the shape of the insertion slot (312) corresponds to the shape of the output shaft of the power motor (35), and the roller shaft (311) can slide along the output shaft of the power motor (35), the rack (1) is provided with a power piece for driving the fixed shaft (31) to slide horizontally on the rack (1), the rack (1) is provided with a distance sensor, the distance sensor is used for detecting whether the position of the protective film deviates in real time, and the power piece and the power motor (35) are controlled to work simultaneously when it is detected that the position of the protective film deviates. The guide grooves (321) are radially arranged in the positioning disc (32), and the adjacent two guide grooves (321) form a right angle of 90 degrees between the center of the positioning disc (32), each guide groove (321) is slidably connected with a guide rod (322), and one end of each guide rod (322) away from the push rod (323) is rotatably connected with a tensioning roller (324), and the driving grooves (331) are four on the driving disc (33); The power unit comprises hydraulic cylinders one (37) and two (38) arranged on both sides of the rack (1), the piston rods of the hydraulic cylinders one (37) and two (38) are oppositely arranged, the cylinder bodies of the hydraulic cylinders one (37) and two (38) are fixedly connected to the rack (1), and the piston rod ends of the hydraulic cylinders one (37) and two (38) are respectively connected to the roller shaft (311).

2. The color plate laminating apparatus according to claim 1, wherein: The power unit comprises a gear (332) fixedly connected to the middle part of the driving disc (33), and further comprises a cylinder (341) fixedly connected to the fixed disc (34), the cylinder body of the cylinder (341) is fixedly connected to the fixed disc (34), and the piston rod end of the cylinder (341) is fixedly connected with a rack (342), and the rack (342) is engaged with the gear (332) on the driving disc (33).

3. The color plate laminating apparatus according to claim 1, wherein: The roller shaft (311) is provided with an end face thrust bearing (36), one side of the end face thrust bearing (36) close to the fixed shaft (31) is fixed with the roller shaft (311), and the other side away from the fixed shaft (31) is rotatably connected with the roller shaft (311), and the piston rod ends of the hydraulic cylinders one (37) and two (38) are respectively fixedly connected to the sides away from the end face thrust bearing (36).

4. The device according to claim 1, wherein: The feeding mechanism (2) comprises a feeding frame (22) slidably connected to the rack (1), and a bolt is threadedly connected to the feeding frame (22), and the bolt is used for fixing the feeding frame (22) and the feeding rod (21); the top of the feeding frame (22) is fixedly connected with two supporting seats (23), the supporting seats (23) on the two feeding frames (22) are arranged one by one, and each two corresponding supporting seats (23) are used for supporting the protective film roller; the top of the supporting seat (23) is provided with a notch groove (24), and the two ends of the protective film roller are rotatably connected in the notch groove (24) of the supporting seat (23). ​ 5. A film coating process applied to the film coating apparatus according to any one of claims 1 to 4, characterized in that, The method comprises the following steps: S1, steel plate feeding: orderly placing the steel plate on the laminating machine, and conveying the steel plate on the rack (1); S2, steel plate gluing: adding the prepared glue into the coating groove of the laminating machine, and coating the glue on the surface of the steel plate through the coating roller; S3, film covering: the protective film on the protective film roller is conveyed to the direction of the film covering roller (11) and passes through the bottom of the film covering roller (11), and the steel plate also passes through the bottom of the film covering roller (11), and the film covering roller (11) presses the protective film on the surface of the steel plate; S4, cooling and air drying: after the steel plate is laminated, it is conveyed into the water cooling device for water cooling and then air drying, and the lamination is completed.

Images